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Proceedings of the Chemical Society, Vol. 26, No. 379 |
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Proceedings of the Chemical Society, London,
Volume 26,
Issue 379,
1910,
Page 333-346
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摘要:
Issued 30/12/10 PROCEEDINGS OF THE CHEMICAL SOCIETY. Vol. 26. No. 379. Thursday, December 15th, 1910, at 8.30 p.m., Professor HAROLD B. DIXON,M.A., Ph.D., F.R.S., President, in the Chair. The PRESIDENTreferred to the loss sustained by the Society in the death of Prof. Dr. Rudolph Fittig on November 19th, and stated that the following telegram of condolence had been forwarded to Herr Fittig : “The President, Officers, and Council of the Chemical Society deeply mourn the loss of their distinguished Honorary and Foreign Member, Professor Dr. Rudolph Fittig.-HORACE T.BROWN,Foreign Secretary.” It was announced that the Faraday Lecture would be delivered by Professor Theodore W. Richards on June 14th, 1911. Messrs. H. V. A. Briscoe, H. Leslie F.Buswell, Rikb Majima, A. D. Mitchell, and Sidney H. Newman were formally admitted Fellows of the Society. Certificates were read for the first time in favour of Messrs. : James Allan, M.A., B.Sc., Ravenscourt, Lerwick, Shetland Isles, Joseph Bate, 59, Southwood Lane, Highgate, N. Joseph Mayson Blackburn, 346, Deane Church Lane, Bolton. Michael Angelo Fielding, 8, St. Joseph’s Place, Cork. 334 Evan Dalton Griffiths, B.Sc., 9, Wanstead Park Avenue, Manor Park, E. Arthur Bennett Hall, 31, Dyer Street, Kirkham. Charles Herbert Hampshire, B.Sc., 19, Brook Street, Ilkley. Bernard Grindrod Hough, The Chestnuts, Wardle Road, Sale. Ernyst Graham Laws, B.A., Alverna, Edith Road, Ramsgate. Ian Gordon Sellar Wink, 27, Panmuir Road, Cottenham Park, Wimbledon, S.W.Of the following papers, those marked * were read : “332. 6L Studies on enzyme action. Part XV. The comparative influence of monohydric (CnH2,+1) alcohols and other non-electrolytes on enzymic activity.” By Henry E.Armstrong and Edward Prankland Armstrong. The influence exercised by a number of non-electrolytes in several cases of enzymic change was considered from the point of view of the influence of molecular weight in modifying activity in the case of related compounds. “333. “Studies on enzyme action. Part XVI. Prunase and amygdalase : their separate occurrence in plants.” By Henry E. Armstrong, Edward Frankland Armstrong, and Edward Horton. It has been argued in former communications that the hydrolysis of amygdalin by almond emulsin is effected in several stages by distinct enzymes, the contention being that it is first resolved into a molecule of glucose and Fischer’s glucoside by the action of amygdalase, Fischer’s glucoside being then resolved into glucose and mandelonitrile by the agency of a second enzyme.Sources of the latter enzyme, in which it is unaccompanied by amygdalase, were indicated. Evidence was adduced from which it was inferred that amygdalin is usually formed in the fruit, probably from Fischer’s glucoside formed in the leaves. “334. Studies on enzyme action. Part XVII. The distribution of p-glucases in plants.” By Henry E. Armstrong, Edward Frankland Armstrong, and Edward Horton. A general method of studying the enzymes in plants was described and examples were given of its application.335 "355. Studies on enzyme action. Part XVIII. Linase." By Henry E. Armstrong and John Vargas Egre. Further examples were given of the application of the method described in Part XVII to more than a dozen species of Linuna; the experiments have been carried out with the object of studying the enzyme characteristic of this family. DISCUSSION. Dr. RUSSELL pointed out that some of the leguminous plants mentioned by Professor Armstrong as being rich in glucoside-splitting enzymes were also known to undergo very rapid fer-mentation in the animal stomacb, which seemed to indicate high enzymic activity in other directions also. He further asked what was the function of the hydrolytic products of the glucosides, and whether it was possible that some of them might act in the plant.in the same way as hormones acted in the animal, by controlling certain of the processes going on. When, for example, the repro- ductive processes began in the plant there set in an alteration in the type of changes taking place, vegetative growth giving place to seed formation. The mechanism bringing about this alteration in the case of animals could hardly be assumed in the case of plants, but it was conceivable that some of the bodies Professor Armstrong had described might be effective. In answer to Mr. Hall, Professor ARMSTRONGsaid that the amount of enzyme present in the organs of a plant was undoubtedly different at different seasons, and it would be necessary to study plants over the whole period of growth.In answer to Dr. Russell, he said that they had been led to conclude that glucosides were not so much reserve food materials in the ordinary sense of the term, or protective agents, but that, in many cases, the significant constituent exercised a function in the plant similar to that which it exercised when present in human food- that is to say, they served to stimulate enzymic change. It was an interesting fact that seeds of plants rich in glucoside often germinated with extreme readiness, the plant also growing rapidly, as in the case of mustard, for example. The change involved in the ripening of seeds might well be hastened by the rapid separation of hydrogen cyanide, for example, from a cyanophoric glucoside towards the close of the period of growth.The final disappearance of the cyanide from linseed and from vetch seeds was perhaps to be explained in this way. In the case of the banana, the unripe green pod blackened rapidly under the influence of anzesthetics; in the natural ripening process, this change was determined from 336 within the fruit by the liberation of a fruit ether (ethereal salt), and the outward blackening was thus a signal of the completion of inward change. *336. “Investigations on the dependence of rotatory power on chemical constitution. Part I, The rotations of the simplest secondary alcohols of the fatty series.” By Robert Howson Pickard and Joseph Kenyon.The resolution of the inactive forms and determinations of the rotatory powers at different temperatures and other pro-perties of the optically active forms of the following alcohols were described : methylethylcarbinol, methyl-n-propyl-, methyl-mbutyl-, methyl-n-amyl-, methyl-n-hexyl-, methyl-n-heptyl-, methyl- n-octyl-, met h yl-n-non yl-, met h yj-n-decyl-, met hyl-n-undecyl-, ethyl- n-hexyl-, methylisobutyl-, phenylmethyl-, and phenylethyl-carbinols. *337. “The chemistry of mesothorium.” By Frederick Soddy. Experiments on the mixture of radium and mesothorium with barium sulphate, obtained by adding a barium salt and sulphuric acid to a solution of thorianite in nitric acid, have shown that the separation of mesothorium is not due, as previously has been sup- posed, to its adsorption by the barium sulphate, but depends on a true chemical analogy between mesothorium and barium of the same kind as exists between barium and radium.The mesothorium could not be concentrated from the barium by chemical methods. By fractional crystallisation of the chlorides, the mesothorium remains with the radium, and can thus be separated from the barium. The proportion between mesothorium and radium is com- pletely unchanged by fractional crystallisation of the chlorides. In the ordinary method used in the manufacture of thorium compounds for dissolving monazite sand, by heating it with excess of sulphuric acid and agitating the product with water, some of the mesothorium remains in the insoluble residue, but the greater part passes into solution.If a small quantity of a barium compound is mixed with the monazite sand before treatment, practically the whole of the mesothorium is separated with the insoluble residue, none passing into the solution. The part of the residue containing the meso-thorium can readily be separated from the heavy unattacked sand by decantation. From this part the mesothorium can be separated by methods similar to those employed in the working up of pitch-blende residues for radium. The cases of complete chemical identity between groups of radioactive elements, differing presumably in atomic weight, which now appear to include all the radioactive elements of period of average life longer than it year, are in direct.conflict with the principle of the periodic law. 338. "Traube's molecular volume method applied to binary mixtures of organic substances." By William Ringrose Gelston Atkins. The compounds and eutectic mixtures described by Philip (Trans., 1903, 83,814) were prepared and their densities determined at or slightly above their melting or eutectic points respectively. Chloral hydrate was also studied. In dealing with a compound, the molecular weight is given according to Traube by : M'=p(S atomic volumes + co-volume), whereas if the calculation of the sum of the molecular weights of the molecules in the material being studied be made, one obtains: M =p( 8 atomic volumes + n. co-volumes), where n is the number of molecules going to form the supposed compound. From t,he measure of agreement between the values thus obtained and the theoretical molecular weight of the assumed compound, it is possible to ascertain whether a compound exists or whether the fused mass is merely a mixture, eutectic or otherwise.Below are given the calculated molecular weights obtained from the relation : M =pt[S at. vol. + co.-vol. at 0" (1+ at)] for a compound, and M =pt[S at. vol. + n. co.-vol. at Oo (1+ at)], using the values for the constants given by Reychler (Outlines of Physical Chemistry, p. 68) and by Smiles (Chemical Constitution and Some Physical Properties, p. 143), where a is the coefficient of expansion of a gas. M (as M (as M (theo-P* compd.).mixture). retical). (1)o-Nitrophenol and p-toluidine . ... . . pispr, =1 *171 221 251 246 Freezingpoint. curve shows eutectic point at 15*6*. Traube's method reveals, at the most, slight association. (2) Phenol aid a-nephthylamine . . ,... p"o/ij =1 *125 223 253 237 Both methods point to a considerably dissociated compound, m. p. 28'8O. (3) Phenol and 21-toluidine ............... p3o/i5 =1.037 186 214 201 Both methods show a considerably dissociated compound, m. p. 28'5O or 30*0°, according to which crystalline form was present. (4) Phenol and dipheiiylaniine .. . . ..... p33/lj =1.075 266 294 263 338 Freezing-point curve shows eutectic point at 18.1O. Traube's method points to the opposite conclusion.(5) Phenol (2 mols.) aid carbamide (1niol.) ................................. p61/1j=1'104 216 264 244 Both methods point to a considerably dissociated compound, m. p. 61O. (6) Aniline and p-cresol .................. p24/15 =1.032 185 212 201 Both methods show a greatly dissociated compound. (7) p-Tolnidine and a-naphthol ......... p.i4/15 =1-075 229 260 251 A highly dissociated compound is shown by the freezing-point curve. Traube's method agrees with this, but the results might almost equally well be taken as pointing to slight association among the like molecules. (8) Chloral hydrate ........................ ptj6/4 =1*575 163'5 216.6 165.5 The magnetic rotation and chemical evidence point to a compound, as does the above calculation.(9) Ammonium thiocyanate (3 mols.)and thiocarbamide (1mol. ) ......... pi05/15 =1'231 208 423 304 Findlay's determinations of the freezing-point curves show that this is a mixture. Traube's method indicates a compound. Thus in seven of the examples the evidence afforded by the various methods is not cont,radictory, whilst in two cases the results are absolutely at variance. It must, however, be remembered that the values obtained by Traube's method indicate association in the fused mass without distinguishing, for example, whether in No. 2 it is the phenol molecules which are associated with each other and the a-naphthylamine similarly, or whether the phenol and a-naphthylamine molecules combine in a certain percentage of cases.If, however, the latter be the case, it is not easy to see why the association of the phenol should be between one and two when mixed witch a-naphthylamine, and between two and three when mixed with carbamide. For the latter conclusion cannot be avoided unless it is supposed that the association of the carbamide in phenol solution is sufficiently high to raise the average of the mixture (phenol, 66 per cent., carbamide, 33 per cent., by molecules) to the value found. This is rendered very unlikely, as a determination of the molecular weight of thiocarbamide in phenol (about 1.7 per cent. of thiocarbamide by weight) gave a nearly normal value, 87 instead of the theorebical 76. This result was obtained in an attempt to trace the freezing-point curve of phenol and thio-carbamide to see if a compound similar to the phenol-ca.rbamide compound could be obtained.However, the separation of crystals of what had all the appearance of being thiocarbamide show an 339 eutectic point at 36.S0, only 3’74O below the melting point of the pure phenol used. The thiocarbamide present at the eutectic point amounted to only 4.2 per cent. Thus it seems fair to conclude that whilst by Traube’s method alone it is not possible to decide whether the association is between the like molecules or the unlike, taking other facts into consideration the method may be considered trustworthy for temperatures up to 60° at any rate. Above this the effect of the coefficient a becomes considerable.In view, however, of the very good agreement in the case of chloral hydrate (163.5 calc., and 165.5 theoretical) at 66O, it seems to be quite allowable to use the method at 105O for the thiocarbamide-thiocyanate fused mass. The above evidence for the existence of Philip’s compounds in the liquid state receives con-firmation from Treitschke’s viscosity measurements (Zeitsch. physikal. Chem., 1907, 58, 425). These show that the compounds exist as such, but in a largely dissociated condition. Rise of temperature increases the dissociation. 339. “Hydroxycodeine : a new alkaloid from opium.” By James Johnston Dobbie and Alexander Lauder. This alkaloid was discovered by Messrs. T. and H. Smith, Edinburgh, in the mother liquors obtained in the working up of the opium alkaloids after the ordinary alkaloids have been eliminated.It has the formula C18H2104N, and is a tertiary base. It is soluble in water and the usual organic solvents. So far it has not been obtained in the crystalline condition. On heating, it softens about 40°, and is completely melted at 51O. It is slightly dextrorotatory, and contains one methoxyl group. The hydro-bromide, CI8H,,O4N,HBr, crystallises readily from water in large, hard, prismatic crystals. The pEatimichZoride has the formula (C18H210aN)2,H2PtC3,.The alkaloid appears tobe a hydroxy-derivative of codeine; its absorption spectra agree very closely with those of codeine, and the colour reactions of the two alkaloids are practically identical. 340. ‘‘ Studies in the carbazole series.” By Carl Gnstav Schwalbe and Salomon Wolff.The object of this work was to prepare mercaptans of carbazole with the view of converting them into sulphide dyes and sulphonic acids. It was found that in most cases, instead of the required mercaptan being obtained, the derivatives employed were reconverted into carbazole itself. In repeating the preparation of 340 carbazoledisulphonic acid according to Schultz and Bauenstein’s method (J. pr. Chem., 1886, [ii], 33,1907), the authors obtained a disulphonic acid having different properties, giving, for example, a different disulphonyl chloride and disulphonamide. In sulphonating carbazole under various conditions, a monosulphonic acid was never obtained, but disulphonic acids or a mixture of di-and tri-sulphonic acids always resulted.Carbazole is easily sulphonaked by 67 per cent. sulphuric acid, giving a disulphonic acid, differing from that of Schultz and Hauenstein, and also from the acid mentioned above. On sulphonating 3-nitrocarbazole and subsequent reduction, an amino-disulphonic acid was isolated. 1-Phenyl-l : 2 : 3-benzotriazoZe-5-suZphonicacid was prepared by the diazotisation of o-aminodiphenylamine-p-sulphonicacid. This triazole, on heating, gave carbazole instead of the expected mono-sulphonic acid. 341. ‘‘ Syntheses with phenol derivatives containing a mobile nitro-group. Part 111. Complex iminazoles, azo-compounds, and azides,” By Raphael Meldola and Harold Kuntzen.The authors indicated the existence of new type of bisiminazoles, and described the first member of this series, which is a colloidal subst,ance of the formula : A further study of the interaction of trinitroacetylaminophenol and aromatic hydrazines has led to the discovery that asymmetric secondary hydrazines are without action, but that primary hydrazines yield azo-compounds of the type (I): OH OH It was also shown that the trinitro-compound is readily decom- posed by sodium a.zide with the formation of the triazo-compound (€1) 341 342. u The correlation of viscosity with other constitutive properties.” (Preliminary note.) By Thomas Percy Hilditch and Albert Ernest Dunstan. The authors have been engaged for some time on an investigation concerning the effects of various constitutive features on the viscosity coefficient in a.n attempt to bring this property into line with molecular refraction, dispersion, magnetic rotatory power, optical rotatory power, and the like.They have found that in general a close parallelism exists between the effects of unsaturation (simple and conjugated) on these diverse properties. In particular, the result of acetylenic union is invariably to raise the viscosity coefficient, whilst a similar observation wits made in general for the ethylenic linking. On the other hand, the saturated compounds in all cases have the lower viscosity, and in most a noticeably greater molecular volume. Various cases of conjugated unsaturation also have been examined, and the authors have found a remarkable exaltation in comparison with the values obtained from unconjugated unsaturated substances. Symmetrically conjuga.ted compounds have been found to exhibit a still more extraordinary anomaly.As an illustration ma.y be quoted the times of efflux for the following typical cases: 4-Hydroxy-3-methosy-l-allylbenzene......... 2126 -0 sees. 4-Hydroxy-3-rnethosy-1-propenylbenzene... 8160’0 ,) 3 :4-hlethylenedioxy-l-allylbenzene......... 682-6 3 :4-Nethylenediosy-1-propenylbenzene...... 1161.8 yy Ethyl propyl ether ................................. 145-2 Ethyl ally1 ether.................................... 140.7 yl Ethyl propargyl ether..............................206.2 , , The authors propose to extend this line of work to such cases as ring formation, hydroaroma-tic and aromatic compounds, spatial propinquity of unsaturated groupings, symmetrical and unsym-metrical substitution in aromatic compounds, and viscosity constants for the various homologous series. 343. bb Physical properties of mixtures of ether and sulphuric acid.” By James Robert Pound. Mixtures of et,her and ‘‘ 100 per cent. sulphuric acid ” were chiefly used in this investigation; some work was done with ethereal solutions of 95 per cent. sulphuric acid. All the experiments were carried out at 30°, and in a few cases also at 20°. In the case of none of the physical properties examined do the solutions obey the “normal mixture ” rule.The specific volumes are up to 10 per cent. less tha.n the theoretical values. The contraction on mixing 342 is greatest about the equimolecular mixture. The conductivity of the mixtures with “the 100 per cent. acid ” rises to a maximum for the 89 per cent. acid mixture. There is a sharp descent from this maximum to the minimum conductivity, which occurs with the 98 per cent. acid mixture. This minimum is similar to that obtained on adding a little water to 100 per cent. sulphuric acid. The viscosity curve for the ether-acid mixtures ha.s a maximum at the 67 per cent. acid mixture, and closely resembles the corresponding curve for water-sulphuric acid solutions. Over the range from the 59 per cent. to the 89 per cent. acid mixture, the product of the viscosity and the conductivity varies linearly with the composition.The surface tensions, found by the method of drops, vary linearly with the composition over a large range-from the 20 per cent. to the 80 per cent. acid mixture. The vapour pressures of the solutions decrease as the percentage of acid increases, the fall of vapour pressure being greatest between the 40 per cent. and 50 per cent. acid mixture. Here, its in the previous cases mentioned, the curve resembles the corresponding one for water-sulphuric acid mixtures. The actual number or composition of the complexes that are certainly formed in the solutions cannot be given definitely. 344. bL New syntheses of thioxanthone and its derivatives.” (Preliminary note.) By Samuel Smiles. In a previous communication (Trans., 1910, 97, 1290) it was shown that tthioxanthone and its derivatives may be obtained by the condensation of aromatic substances with either o-carboxy-benzenesulphinic acid or with o-thiolbenzoic acid.It has now been found that, other four methods are available for the synthesis of these substances : (1) Condensation of o-dithiobenzoic acid with aromatic derivatives in sulphuric acid. (2) Condensation of mhydroxy- or m-aminebenzoic acids with (a) suitable disulphides, or (6) certain sulphinic acids in sulphuric acid. (3) Action of o-thiolbenzoic acid on certain quinones, and elimination of water from the product. The three last-named methods yield products the structures of which are known from those of the reagents.These reactions are being studied in detail. 345. Cryoscopic, ebnllioscopic, and association constants of trimethylcarbinol.” By William Ringrose Gelston Atkins. The cryoscopic constant of trimet,hylcarbinol wits found to have the value E=128, from which, by van’t Hoff’s equat,ion, the value 343 for the heat of fusion, s=13.84 cal., is obtained. Taking de Forcrand‘s value, s=20.98 cal., E (calc.) =84-5. The appearance of the solid first in the form of minute needles, which soon change into orthorhombic plates, gives some ground for supposing that the experimental and calculated values of E differ because an unstable, crystalline modification is the first to separate out, in which s=13.84, whereas s=20-98 was determined from the stable form.This unstable form may be the modification which Tammann found to be stable only at high temperatures and pressures. Boiling-point determinations give El =17-45;calculation from the equations of van’t Hoff, Tsakalotos, and Baume gives values ranging from El =18.97 to El =19.78, whilst dpldT (calc.) =28.4. Calculation from the observed values of yt by Ramsay and Shields’ equation gives x=1.388 from 35O to 47O, and x =1.304 from 47O to 80°, whilst Walden’s equation gives x=1*094 at the boiling point, 82’5O. Longuinescu’s relation gives x=1-12 at 30°. 346. ‘‘ The syntheses of 3-P-aminoethylindole and its formation from tryptophan.” (Preliminary note.) By Arthur James Ewins and Patrick Playfair Laidlaw.Since a number of bases derived from naturally occurring amino- acids have been recently shown to be physiologicalIy active, it was thought desirable to prepare 3-&aminoethylindole, t,he base corre- sponding with tryptophan (indole-3-a-aminopropionicacid). The base has been obtained in two ways. (1) By heating together y-aminobutyrylacetal and phenyl-hydrazine in presence of zinc chloride. The reaction product, on suitable treatment, gives a good yield of the picrate of the desired base. (2) By submitting tryptophan to the action of putrefactive organisms under conditions similar to those employed by Ackermann (Z&tsch. physiol. Chem., 1910, 65, 504) in the preparation of 4-B-aminoethylglyoxaline from histidine.A small quantity of a picrate identical in all respects with the synthetic compound was isolated. The base has been found to be physiologically active, producing a rise of blood pressure. The action has, however, yet to be fully worked out. The details of the synthesis will, it is hoped, shortly be com-municated, and experiments are in progress with a view to the production of other indole derivatives by the same process. 344 347. ''6-Bromo-2-phenyldihydro-1:3-benzoxazine-4-one and related derivatives." By Ernest Chislett Hughes and Arthur Walsh Titherley. 2-Phenyldihydro-1 : 3-benzoxazine-4-one (I), on bromination in chloroform solution, yields the 6-bromo-derivative (11) (m. p. 223O), which, with chlorine in benzotrichloride solution at 1loo, is dehydro- genated,.and gives 6-bromo-2-phenyl-1: 3-benzoxazine-4-one (111) (m. p. 20S0). The latter is also obtained by dehydration of O-benzo?/l-Ei-bromoscllicl/la;rraids (IV) (m. p. 154O) under the catalyt& influence of hydrogen chloride, and it suffers ring fission on hydrolysis in presence of alcoholic hydrochloric acid, producing N-benzoyZ-5-BromosaZz'cylamide (V) (m. p. 249O). 0-and N-Benzoyl- 5-bromosalicylamides show the same reciprocal transformations as the other previously-described 0-and N-acylsalicylamides, and they have been obtained by similar methods. The dihydro-derivative (11) has been synthetically obtained from 5-bromosalicylamide and benzaldehyde, into which it decomposes on hydrolysis.; whilst on treatment with alkali and pyridine, it rearranges to a very labile open-chain isomeride, syn-b enzylidene-5- b romosalicylamide (VI).111.) (IT.) v.1 348. ('Reactivity of the halogens in organic compounds. Part V. Interaction of esters of the bromo-substituted fatty acids with silver nitrate in alcoholic solution." By George Senter. The relative rates with which the bromine is eliminated from the esters of the lower bromo-substituted fatty acids by means of silver nitrate in alcoholic solution have been measured at 49*9O, and in some cases at 26.0'. The results for the higher temperature are summarised in the table, in which 7c represents the relative velocity-coefficients under comparable conditions : Ester. k x 104. Ethyl bro ti] oacetat e ..................0 -208 ,, a-hromopropionatc ............ 0.085 ,, a-bromoisobutyrate ............ 0.062 ,, a-bromobutyrate............... 0.038 ,, a-bromoisovalerate ............ 0 -022 Methyl bromopropionate ........ 0.077 Ethyl 99 9, ......... 0.085 72-Propyl ,, 9) ......... 0.087 345 Measurements have also been made with methyl alcohol as solvent’, and also in mixtures of ethyl alcohol with other solvents. The results were compared with those obtained for the corresponding acids (Trans., 1910, 97, 2461, and the effect of substitution on the reactivity of the bromine was discussed. 349. ‘(Attempts to prepare glycerides of amino-acids.” By Roman Alpern and Charles Weizmann. The following new compounds were described : aaI-Diprop’onilz, C,Hl,05, boiling at 170-173°/10 mm.a -Bromoacetin, OH*C~=CH(OH)*CH,*O*CO*CH,Br,a yellow oil boiling at 217-219O/ 10 mm. aaf-Diacetoacetin, C,,H,O,, prepared by con-densing acetoacetic ester and glycerol in the presence of sulphuric acid, a, heavy, yellow oil with an odour recalling that of ethyl acetoacetate; it boils at 157-160°/ 14 mm. afi-DichZoroacetoacetin, CH,*CO*CH2*C‘0,*CH,*CHC1*CH2,C1,a liquid boiling at 103--105°/ 14 mm. Ethyl N-azlylglycine, CH,:CH*CH,*NH*CH,*CO,Et, pre pared from allylamine and ethyl bromoacetate in ice-cold ethereal solution, a liquid boiling at 74--‘77O/15 mm. ADDITIONS TO THE LIBRARY. 111. Pamphlets. Autenrieth, W., and Koenigsberger, J. Ueber ein neues Kolorimeter und dessen Verwendung zur Bestimmung von Blutfarbstoff, Eisen, Indikan und Kreatinin.(From the Munch. med. Voch., 1910.) Bruce, W. Report on cattle-feeding experiments. (Bull. Edinburgh and East of Scotland Coll. Ag&, No. 21, 1910.) Buckingham, Edgar. On the definition of the ideal gas. (From the Bull. Bur. Standards, 1909, 6.) Clacher, Villiam. The use of the refractometer in the analysis of jams and jellies, marmalades and confections. (From the Int. Xugur J.,1910.) Dittrich, Max, and Leonhard, A. Ueber Eisenoxydulbestimmungen in Silicaten. (From the Ber. Pers. Oberrheinisch. Gsol. Per., 1910, 43.) Johannesburg. Government Laboratories. Report 1908-09. pp. 16. Pretoria 1910, Luzzatto, R.,and Satta, G, Intorno al comportamento nell’ organism0 346 znimale dei Jodoso-Jodi1 e Jodonio-compasti.11. Comportamento del Jodil-benzolo. (From the Arch. Farm. sperim. Xci.,1910, 9.) Menge, George A. A study of melting-point determinations. (Bull. U.S. Hygienic Laboratory, 1910, No. 70.) Woburn Experimental Fruit Farm. Twelfth Report. By the Duke of Bedford and Spencer U.Pickering. pp. iv+51. London 1910. At the next Ordinally Scientific Meeting on Thursday, January 19th, 1911, at 8.30 p.m., the following papers will be communicated : “Intramolecular rearrangement of diphenylmethane o-sulphoxide.” By T. P. Hilditch and S. Smiles. ‘‘The reactions between chemical compounds and living muscle proteins.” By V. H. Veley. “The interaction of alloxan and glycine.” By W.H. Hurtley and W. 0. Wootton. ‘‘The decomposition products of tetramethylammonium nitrite under the aotion of heat.” Ry P. C. R8y and H. K. Sen. “Retardation and acceleration in the dissolution of mercury in nitric acid in presence of minute quantities of ferric salts and manganese nitrate.’’ By P. C. Rtiy. “On dl-and d-A2-m-menthenol(8) and dl-and d-A2:8 (9)-m-mentha-diene,” By W. N. Haworth, W. H. Perkin and 0. Wallach. “The identity of xanthaline with papaveraldine.” By Miss B. Dobson and W. H. Perkin. ‘‘Amalgams containing silver and tin.” By R. A. Joyner. “Studies of the constitution of soap in solution: the electrical conductivity of sodium stearate solutions.” By R. C. Bomden. ‘I Additive compounds of phenols and phenolic ethers with aromatic polynitro-derivatives.” By J. J. Sudborough and 8. H. Beard. ERRATUM. PROCEEDINGS,1910. Page Line 268 6 for I‘ seven carbon ethers ” read “ seven-carbon ether (ethyl amyl ether).” R. CLAY AND SONS, LTD., BREAD ST. HILL, E.C., AND BUNGAY, SUFFOLK.
ISSN:0369-8718
DOI:10.1039/PL9102600333
出版商:RSC
年代:1910
数据来源: RSC
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