|
1. |
Proceedings of the Chemical Society, Vol. 23, No. 328 |
|
Proceedings of the Chemical Society, London,
Volume 23,
Issue 328,
1907,
Page 177-190
Preview
|
PDF (814KB)
|
|
摘要:
fssue(l 29/6/07 PROCEEDINGS OF THE CHEMICAL SOCIETY. Vol. 23. No. 328. Thursday, June 20th, 1907, at S.30 p.nl., Sir WILLIANRAMSAY, K.C.B., F.R.S., President, in the Chair, Certificates were read for the first time in favour of Messrs. : Arthur John Banks, 61, Lawton Road, Waterloo, Liverpool. John Kaye, M.A., B.Sc., Westerfield, Perth. Marcus Wechsler, I>.Sc., 136, Sinclair Road, Kensington, W. Certificates have been authorised by the Council under Bye-Law I. (par 3) in favour of Messrs. : David Leo Behrmann, 75, Sirewright Avenue, Doomf ontein, Transvaal. William Bush Schober, B.Sc., Ph.D., Lehigli Univ., South Bethlehem, U.S.A. A Ballot for the Election of Fellows was held, and the following were subsequently declared duly elected : V'illiam Arthur Colelsouni.Peicival George Lloyd. Hugh Hague Copping, B. A. TValter Harold Nuttall. Mattliewillan Dalton Cowap. Harold Pochin, B.A. Oweii Aubrey Elias. Ruchi Ram Xahni, M.A. Eugen Fischer, Ph.D. Charles Kenneth Tinkler, B.Sc. Walter George Gledhill, M.A. Charles Home TVarner. John Abkiusoii Jenniiigs. I\'alter Orinston Young. Charles William Lamb Jensen. Israel Hyman Zortman, B.Sc. 158 Of the following papers, those marked * mere read : *134. (‘Some properties of radium emanation.” By Alexander Thomas Cameron and Sir William Ramsay, K.C.B. It has been discovered that the emanation from radium undergoes a rapid change of volume shortly after its change from the solid to the gaseous state; this is followed by a slow change, corresponding with its loss of electrical activity.Glass tubes, as well as silica tubes, were used for. the experiments. The absorption of helium, hydrogen, oxygen, and carbon dioxide WAS investigated in these tubes so as to estimate the necessary corrections for the loss of volume by the emanation. It has been shown by thirty sets of measurements that the emanation behaves in accordance with Boyle’s law, both before and after this preliminary change. Measurements have been made of the initial volume of the emanation, obtained from a solution of 87.7 milligrams of radium (metal) as bromide and sulphate. From these it would appear that, instead of the previously ac :epted value for the average-life-period of radium, 1100 years, a much shorter life must be deduced, namely, 236 yens.The change of fresh emanation is accompanied by a halving of its volume, and reasons were adduced for the belief that this change corresponds with its polymerisation from Elill into Em2; the change, as shown by time measurements, is a unimolecular reaction, and the subsequent rate of contraction agrees numerically with the loss of electrical activity. It has also been shown that helium, contained in silica vessels, may pass into the walls, but the conditions under which this absorption takes place have not been elucidated. Lastly, a deposit consisting doubtless of radium D has been observed; it is a brown substance, with a sub-metallic lustre, not easily attacked by oxygen. The half-life-period of radium D is said to be forty years, whilst those of radium A, B, and C are only a few hours.DISCUSSION. Professor CLOWESasked whether statements made by Dr. Thorpe that afternoon, which were supplementary to his Bakerian lecture, might not explain the presence of free hydrogen after exploding the mixture of oxygen and hydrogen arising from the decomposition of water. The lecturer had mentioned that he had invariably noticed an odour of ozone and of hypochlorite from solutions of radium bromide. If ozone were formed, this would lead to removal of oxygen by the action of the mercury in the pump, and if hypochlorite were produced, oxygen would remain combined in the solution. An excess of hydrogen mould in either case remain after the explosion.Mr. BALYasked whether it were not possible that the discrepancy between Sir William Ramsay's and Prof. Rutherford's values for the life of the radium atom could be explained by the life being shortened in the presence of the emanation. It was necessary to assume that the radium atom was in a very unstable condition and it appeared possible that its disintegration might be assisted by the bombardment due to the decomposition of the emanation. Prof. Rutherford made his observations with a very thin layer of radium bromide on a plate from which the emanation readily escaped. Sir William Ramsny on the other hand allowed the solution of radium bromide to stand for periods of four days during which time the emanation was concentrat-ing in the solution. In reply to a question from Prof.Rutherford, Sir W. RAMSAYstated that the emanation, when it passes from the solid to the gaseous state, passes at once into a monatomic gas, although one would imagine that a diatomic gas would be preferably formed. This may conceivably be connected with another unusual phenomenon which it displays ; for at 80' the diatomic gas reverts almost; entirely to its monatomic state, at 132' the reversion is not so complete, and at 237' still less complete. This is contrary to the general behnviour of compounds, yet it is not inconceivable that a higher temperature might prove favourable to combination and that a diatomic gas may be more stable at high than at lorn temperatures.The author, however, maintained that he was there to chronicle and not to defend the behaviour of the emanation. The volume of helium produced from 1 volume of an emanation is about 34 volumes-agreeing in this respect with Prof, Rutherford's contention that the a-particle is a helium atom. In reply to Prof. Clomes, it was pointed out that no ozone is produced from a solution of: radium bromide although the solid bromide has an odour of ozone. "135. '' The affinity constants of aminosulphonic acids as determined by the aid of methyl-orange.'' By Victor Herbert Veley. In continuation of a former investigation on this subject (1'7*ans., 1907,91, 153) the affinity constants of certain aminonaphtholsulphonic acids have been determined, and the general results are as follows.(i) The affinity constants of the aminonaphtholsulphonic acids when determined by the tintometer method show, as regards the effect of the introduction of the hydroxyl grouping in the naphthylaminesulphonic acids, relationships similar to those observed by Ostwald by the electric conductivity method for the hydroxybenzoic acids as compared with benzoic acid. 180 (ii) One possible case of steric hindrance induced by the introduction of the hydroxyl grouping in the 8-position was noted. Attempts were made to examine the naphtholsulphonic acids by the above method, but the acidic reaction appeared to be mollified by some subsequent secondary change. *136. '(Azo-derivatives of 1 :3-diphenylbarbitnric acid.Dynamic isomerism among the coloured hydrazones of 1 :3-diphenyl-alloxan." By Martha Annie Whiteley. In order to thrown some light on the structure of the compounds obtained by the action of aromatic diazonium chlorides on the 5-alkyl- substituted derivatives of 1:3-diphenylbarbituric acid (Proc., 1906, 22, 20l), the investigation has been extended, and the action of the /3-substituted derivatives of phenylhydrazine on 5 :5-dibromo-1 :3-di-phenylbarbituric acid has been examined. The results show that the compounds obtained in the first reaction are axo-derivatives, whilst those obtained in the second are hydraxones. In the course of the investigation the following compounds have been prepared : 5-benxeneccxo-5-benxyl-1 ; 3-diphenylbarbituric acid, NPh-CO>C<:yiE ; 5-benxenenzo-5-di~henylmethyl-1: 3 -di-Co<NE'h*CO NPh*COphenylbarbituric acid, CO<Nph.co>C(N:Npi~/CHPh, , .the nit?-o-deriv-NPh*CO N*C,N,*NO,' melt and decompose atative9 co<NPh*CO>c\N: HCHPh, 170-1 71", 160°, and 175" respectively. These compounds are yellow. 1:3-DiphenyZaZloxanphen,ylnzethylhydmxone, CO<:Ek:g:>C':N*NPhMe ; melt and decompose at 175", 254--255", and I 30-131" respectively ; these compounds exist in two forms, one yellow and one red. "137. ('A series of colowred diazo-salts derived from benzoyl-1 :4-naphthylenediamine." By Gilbert Thomas Morgan and William Ord Wootton. The examination of the diazo-salts of benzoyl-p-phenylenediamineand benzoyl-1 :4-naphthylenedinmine has been continued and it has been foiincl that the diazo-derivatives of the latter base are extremely etable.substances which are invariably coloured.181 Benxoyl-4-aminonaphthccEene-1-diazonium chloride, C,H,*CO*NH*C1oH,*N,oCI, m. p. 140° with decomposition, crystallises in well-defined, yellow needles which retain their colour after repeated crystallisation from water or fractional precipitation from different organic media. The corresponding bromide, iodide, szclphate, nitrate, nitrite, chlorate, per-chlorate, carbonate, trichlo~~oacctate, and thiocyanate have been prepared. The sulphate crystallises in golden-yellow leaflets or needles, whilst the perchlorate, which is quite stable in the dry state, separates in sparingly soluble, light yellow crystals and is the palest compound of the series.These compounds have the chemical properties of diazonium salts and couple readily with alkaline P-naphthol to furnish azo-derivatives. With potassium cyanide they yield benzoyl-4-aminonaphthaEene-1-diaso-cyanide, a stable, red microcrystalline compound which does not couple with alkaline ,&naphthol. These coloured salts might be regarded either as syn-diazo-derivatives or as equilibrium mixtures of diazonium and syn-diazo-derivatives, although their great stability somewhat militates against the assump- tion that they consist wholly or in part of syn-diazo-compounds. The existence of such a series of coloured diazo-salts would be anticipated from the formulation recently suggested by Cain for diazonium salts (formula I) /-\ H C,H,*CO.NH \-/\/-\:N.Cl \/-\:Nql*(1)./\=/ 11 (11). /\=/ /I -N K According to this view, the appearance of colour in the foregoing series may be connected with the replacement of a benzene by a naphthalene nucleus and the substitution of the hydrogen atom of formula (I)by the heavy group C,H,*CO*NH of formula (11). DISCUSSIOS-. Dr. HEWITTthought it very probable that coloured diazonium salts might possess a quinonoid structure. But as in all cases when the salts were coloured they allowed of a true quinonoid formulation, Dr. Morgan’s compound might well have the constitution N*CO*C,H, Cl*N:NH 182 whilst the constitution Dr. JIorgan assigned to the salt more resembled that of the ‘‘chinols ” of Bamberger, which are colourless. Dr.CAIN thought there was much danger in speculating as to the colour of a compound entirely from the quinonoid or non-qiiinonoid state of only a part of the molecule. The rest of the molecule, as Dr. Morgan had pointed out, was of much importance in attempting to arrive at an explanation of the colour. In reply, Dr. MORGANsaid that he preferred the formula for diazo-salts advocated by Dr. Cain to those which required the presence of a labile hydrogen atom in the para-position to the diazonium complex because the former configuration was applicable both to the simpler colourless diazonium salts and also to the more complex coloured diazo-derivatives described in this communication.The development of ‘colour in this series of substances seemed to depend to some extent on the nature of the aromatic nucleus and partly on the presence of n complex substituent in the para-position to the diazo-nitrogen. Further experimental evidence, however, would be required before the con-ditions determining the appearance of colour among the diazonium derivatives could be completely defined. *138.(( Colour and constitution of azo-compounds. Part I.” By John Theodore Hewitt and Herbert Victor Mitchell. The authors recently drew attention to the very marked change in colour when p-nitro-derivatives of arylazo-p-phenols were dissolved in alkalis (Trans., 2906, 89, 13, 17). The explanation was offered that whilst benzeneazophenol forms alkaline salts of corresponding con-stitution, the p-nitro-derivatives furnish salts with the metal attached to the nitro-group and therefore diquinonoid in structure.The relation- ships are rendered apparent by the formule C,jH,-N:N*C,H4*OKand KO,N :C,H,:N*N :C,H,: 0. Definite proof has been obtained of the correctness of this view by a comparison of the two carboxylic acids derived from p-nitrobenzene-szo-a-naphthol of the formule CO,H CO,H \ --/ Both these compounds give deep blue, alkaline solutions, but, whilst the former yields brown precipitates with salts of heavy metals, the latter gives blue precipitates; no doubt in the latter case the lead salt has the constitution coo00:C, ,H,: N *N:C6H3<go.O>Pb. The following compounds were described : ~-,~~tro-5-ncetylan~in6benzoicacid, m. p. 210-220' (with decom- position). 2-iVitro-5-antinobenxoicacid, m. p. about 235'. p-iVitro-m-.cnrbo~ybeizxeneccxo-a-nap~thol,m. p. 260'. o-Nityobenxeneaxo-a-hydroxy-P-naphthoic mid, ni. p. 200'. m-~~trobei~zeneaxo-a-hydroxy-~-naphtho~c -acid, M. p. 220-225'. p-Nitrobenxeneaxo-a-hydroxy-P-naphthoicacid, m. p. 242". p-~itro-m-ca~boxybe~zxensa~o~?~ei~ol,m. p. 195'. pLVitro-m-cnrboxybenxeiteaxo-o-nitrophenol, m. p. 2 13'. p-Ndro-o-o-dibromo-ghenol, m. p. 205-206'. p-AUrobenxeneaxosalicylaldehyde, m. p. 192-1 93' ; its cccetyl derivative, m. p. 150°, and phenylhyldrazone, m. p. 835-240'. The melting points in this and the preceding papers are uncorrected, the decomposition which occurs rendering accurate observation impossible.The general result arrived at is that the frequency of the absorbed light is lowered by increase in the length of the chain of alternate single and double linkings. The introduction of substituents may modify the length of the chain owing to the possibility of more stable salt formation in other directions. 139. '' The oxidation of hydrazines by free oxygen." By Frederick Daniel Chattaway. Hydrazines of the formula R*NH*NH,,where R is a cyclic group, are readily oxidised by free oxygen, the action being accelerated in a remarkable way by alkali hydroxides. In the case of phenyl-hydrazine dissolved in about three times its weight of 4N-alcoholic potash, oxidation is so rapid that the liquid effervesces freely from escape of nitrogen on mere exposure to the air. The action appears to be a general one, and results in the liberation of nitrogen and the replacement of the NH-NH, group by hydrogen, thus : R*NH*NH,+0=R*H+N, + H20.It is simply explained by assuming that when such a hydrazine is oxidised, an unstable hydroxyhydrazine is first produced, which at once decomposes, thus :R*HN*NH,--+ K-HN-NH-OH-+RH +N, + H,O. The action which takes place in the oxidation of hydrazines is thus closely connected with those reactions of dia;;onium compounds in which the diazonium group is replaced by hydrogen. 140. '' Calmatambin : a new glucoside." By Frank Lee Pyman. The author described the isolation of a new glucoside, Calmatambin, from the bark of a tree indigenous to West Africa, which is known to the natives as Calmatarnba, and is probably identical with Canthiurn glubrxyoliulil. 184 The glucoside has the formula C1,H2801,,2H20,and crystallises in needles melting at 100".The anhydrous substance melts at 144-145O. It contains one methoxyl group, has [a], -130*4', and occurs in the bark to the amount of 1.1 per cent. It is readily hydrolysed by dilute acids and by emulsin. Octa-acetyl-omZmatambi?z,C:19H,o0,3(C,H,0),,forms needles melting at 179-180', and has [a], -107.1'. Calmcctambetin, C13HlsOs,~H20,is formed together with dextrose by the action of emulsin on calmatambin according to the equation C,,H,,O,, + H20= C,H120, + C,,H,,O,.It crystallises in needles melting at 148-149'. It contains one methoxyl group and is. optically inactive. It is readily decomposed by the action of dilute acids, and yields a small amount of a scarlet, crystalline substame, CllH120,, melting at 91', which is volatile with steam, and has an aromatic odour ;it may very possibly be a quinone. The foregoing results shorn that calmatambin is a P-glucoside, having the constitution represented by the formula CH3*O*C,,HloO,(OH);0* C6Hl1O,. Calmatambin is devoid of any appreciable physiological action. 141. '(The decomposition of hyponitrous acid in presence of mineral acids." By Prafulla Chandra RBy and Atul Chandra Gaiiguli. Hyponitrous acid, when liberated from silver or mercurous hyponitrite by the action of dilute nitric, hydrochloric, or sulphuric acid at 25' or a higher temperature, decomposes at once according to-the following equations : (1) 2HNO =H,O +N,O.(2) 5HN0 =2H,O +HNO, +4N. Neither nitrous acid, ammonia, or hydroxylamine is formed. The presence of the mineral acids has a specific directive influence in determining the course of reaction. 142. (( The chemical composition of petroleum from Borneo." By Humphrey Owen Jones and Hubert Arthur Wootton. The petroleum from Borneo has been found to consist of approxi- mately equal quantities of homologous hydrocarbons of the paraftin, cyclohexane, and aromatic series, and to contain the members of the naphthalene series to the extent of about 6-7 per cent.The less volatile portions of the oil are optically active. It forms a very convenient source of the nitro- and amino-deriv- atives of the aromatic hydrocarbons, which may be obtained in large quantities and in a highly pure state. 185 143. "The synthesis of phenonaphthacridines : trimethylphenu-naphthacridines." By Alfred Senier and Percy Corlett Austin. The authors have employed the methylene di-iodide and arylamine method (Senier and Goodwin, Trans., 1908, 81, 280) for the synthesis of phenonaphthacridines by using equimolecular mixtures of +-cumidine and naphthols, and good yields of the two desired trimethylpheno- nsphthacridines were obtained. When the naphthylainines mere used* in place of the naphthols, the product generally contained the corre- sponding dinapht hacridine. The condensation of trioxymethy lene with q-cumidine and the naphthols effected the synthesis of the same two compounds, but in thk case the yields were smaller and the products less easily purified.& -a C H-P-nctphthcccridine,8 ;9 :1l-T~wimetl2ylpheno-I is obtained by condensation of inethylene di-iodide witb J/-cumidine and a-naphthol. It crystallises from alcohol in greenish-yellow needles melting at 160" (162.5' corr.) ; its solutions are fluorescent. The platinichloride, auricldoride, memurichloride, picrate, and his-trimethylphenonaphthncridine hexabromide were described. 8 :9 1 11-Trimethylpheno-r-' -naphthacridi.rze, isomeric with theC H-a above, was obtained in a similar manner, using @naphthol instead of a-naphthol.It crystallises from alcohol in straw-coloured needles, melt- ing at 136" (137' corr.), and its solutions are very faintly fluorescent. The hydrioclide, crystsllising from aniline in orange needles, appeared as an intermediate product in the preparation of the base. The plcitinichloride, auricldoricle, and picrate were also described. 144. ''The condensation of aldehydes with mixtures of a-naphthol.p-&H-pdinaphth-and a-naphthylamine : synthesis of 7-aryl-a-N-a acridines." By Alfred Senier and Percy Corlett Austin. In continuation of the study of dinaphthacridines, the authors have found that certain general differences, which they ascribe to steric-influence, dependent on the position of the angular rings (compare Hinsberg, Ber., 1902, 36,4051) between the bases of the type.._ a-N---a and those of the type '-TAP are well illustrated by ap-C H-P a-C H-a detailed investigation of the aldehyde, naphthol, and naphthylamine.186 method of synthesis, first introduced by Ullmann and Fetvadjian (Ber., 1903, 36, 1027). a-N -aTrioxymethylene does not yield the p-CH-P-dinaphthacridine,I whereas it readily forms the P-r-P-isomeride ; berizaldehyde givesa-C H-a the 7-phenyl derivative of both types, and from in-nitrobenzaldehyde was obtained 7-m-nitr0phenyl-~-?---~ -dinaphthacridine, whereasp-CH-P Haase (Ber., 1903, 36, 593) found that with P-naphthol and P-naphthylamine it gave a dihydro-derivative of the corresponding dinaphthacridine, which could not be oxidised to the base. From anLaldehyde and the three tolualdehydes, only derivatives of a-N-athe type could be obtained.It was also noticed that inp-6H-p-the preparation of dinaphthacridines of this type, hydro-derivatives were never formed. a-lf-a7-0-TOlyE -P-CH-p-dinuphthacridine is obtained in yellow crystals melting at 212' (215' corr.), and forms a platinichZok?e, aurichloi*ide, and picrate. a-N---a7-m-i"01yE-~-~*-p-dinaphthacr~dineis a yellow, crystalline powder melting at 251' (257' corr.), and gives a platinichloride, aurichloride and picrate. a-N---a7-p-Tolyl-P-0H-P-dinaphthacridine forms pale greenish-yell ow, rhombohedra1 crystals melting at 221' (224' corr.), and gives a platini-eldovide, aurichloyide, and picrate.a-X-a7-p-Methoxyphenyl-p-6H-p-dinapl&iacridine crystallises from benzene in small, yellow rhombohedra melting at 257" (263' corr.), and forms a phtinichloricle, aurichloride, and picrate. 7-m-Nitr0pRen~l-~-r---~-dinccphthacridineP-CH-p crystallises from benzene in small, yellow crystals which did not melt below 300'; no sign of fluorescence was observed in any of its solutions. The plntinichlo?-ide, aurichloride, and picrate were prepared. 1Si 145. “An improved form of apparatus for the rapid estimation of sulphates and salts of barium.” By William Robert Lang and Thomas B. Allen. N. Tarugi and G. Bianchi (Gaxxetta, 1906, 36, i, 347) have described an apparatus for the rapid estimation of sulphates and salts of barium by a volumetric method based on the rapid clearing of turbid solutions in tubes of narrow calibre.Their apparatus is some- what complicat,ed, and the authors have simplified it materially. The solution containing the precipitated barium sulphate is forced, by air pressure applied by hand, up a narrow tube, allowed to clear-which it does rapidly as the end-point of the reaction is approached-and a drop of the precipitant added. Any milkiness is plainly observed in the narrow tube, and the solution is washed down into the flask and fresh portions forced up the tube from time to time until further addition of the reagent causes no change, Experiments were made with solutions of sulphuric acid of various concentrations, with the sulphates of copper and of nickel, and also with iron pyrites to determine its sulphur content.The errors, as compared with the gravimetric estimation of sulphur as bariom sulphate, range from 1 to 0.1 per cent., but such errors are materially reduced by taking the average of five or six titrations, and the whole operation can be completed in less than an hour. 146. (( The determination of sugar by Fehling’s solution.” By William Robert Lang and Thomas B. Allen. The apparatus described by the authors (preceding paper) for the estimation of sulphuric acid and sulphates, based on the principle of the rapid clearing of turbid solutions in tubes of narrow calibre, was employed for the determination of dextrose by means of Eehling’s solution.Accurate results were obtained when the solution was heated to its boiling point, the concentration beirg not more than 0.15 gram in 75-100 C.C. of water, and the time of heating being five minutes. Under these conditions the average error varied from 0.1 to 0.30 per cent., but when the solutions were greatly diluted or the time of heating extended from ten to twenty minutes the results varied more than 1per cent. 188 147. '' Studies in asymmetric synthesis. VI. The asymmetric synthesis of the optically active tartaric acids." By Alexander McKenzie and Henry Wren. The asymmetric synthesis of I-tartaric acid mas accomplished in three ways. (1) By the oxidation of I-bornyl fumarate in glacial acetic acid1 solution by potassium permanganate, according to the scheme : 5H-C02H CH*CO,*Cl,Hlp -+ ~H(OH)*C0,*CloH17 CH*CO,H JC(H*C0,*C,,H17 CH(OH)*CO,* C,,H,7 --3 ---f (Inactive.) (Laxorotatory.) (LEvoro tatory.) ?I. (OH) C0,K -+ YH(OH)*CO,H CH(OH)*CO,K CH(OH)*CO,H ' (Lxvorotatory.) (Lsvorotatory.) (2) Ey the oxidation of the potassium salt of Lbornyl hydrogen fumarate in aqueous solution by potassium permangnnate, thus : gH*CO,H -+ gH*C0,-C, CH*C02*CI,H,7 -+CH*CO,KCH*C02H CH*CO,H -+ I I (Inactive.) (Lrevorotatory.) (Lcevorotatory.) ~H(OH)*C0,°Cl,H17 -~ yH(OH)*CO,K -+ YH(OH)*CO,H CH(OH)*CO,K CH(OH)*CO,K CH(OH)*CO,H (Lzvorotatory.) (Lzvorotatory.) (Lzvorota tory. ) CH*CO,H (inactive) -tIn these two cases the change flH*co2H yH(oH)'Co2HCH(OH)*CO,H (active) is rendered possible by the introduction and subsequent complete elimination of the Z-bornyl group.(3) By the oxidation of I-menthyl furnarate in an analogous manner. The asymmetric synthesis of d-tartaric acid was accomplished by the oxidation of the potassium salt of d-bornyl hydrogen fumarate, thus : (Inactive.) (Dextrorotatory.) (Dextrorotntory. ) yH(OH)*CO,*C,OH17 -+ $JH(OH)*CO,K -+ YH(OH)*CO,H CH(OE)*CO,K CH(OH)*CO,K CH(OH)*CO,H (Dextrorotatory.) (Dextrorotatory.) (Dextrorotatory.) 189 148.‘‘Some derivatives of 2-phenyl-l :3-naphthylenediamiae. Part I.” By Norman Lees and Jocelyn Field Thorpe. The P-amino-group in 2-phenyl-1 :3-naphthylenediamine is more strongly basic than the amino-group in the a-position, and is the one first acted on in salt formation, diazotisation, and acetylation, Derir-.atives of the base, in the formation of which the /3-amino-group takes part, can therefore be prepared directly from the base itself, whereas, since the P-amino-group can be readily protected by acetylation, those compcunds which are derived from the amino-group in the a-position can be prepared from the monoacetyl derivative of the base.2-Phenyl-l :3-naphthylenediamine combines with diazonium salts, forming azo-compounds, the azo-group entering in the position 4 in the naphthalene ring. The colours of these compounds do not differ appre- ciably in shade from those of the corresponding compounds derived from 1 :3-naphthylenediamine;hence the presence of the phenyl group has little or no effect on the colour of compounds of this type.Typical derivatives of the base have been prepared and investi- gated. The conditions have also been determined under which it is .converted into the corresponding dinaphthol and the two amino-naphthols. ADDITIONS TO THE LIBRARY. I. Donations. Chemical Trade Journal. Edited by Geo~geE. Davis. Vols. I to X 1. AXanchester 1S87-1892. (Red 14/6/7.) From Dr. C. E. Fansitt. Chemiker Zeitung. Edited by G‘. Krause. Year VI. CGthen 1582. (BecJ. 10/6/7.) From A. Esilman, Esq. Herrick, Rufus Frost. Denatured or industrial alcohol. A treatise on the history, manufacture, composition, uses, aid posbibilities of industrial alcohol in the various countries permitting its use, and the laws and regulations governing the same.pp. x +516. ill. Sew York 1907. (12eccl. 19/6/7.) From the Publishers : Messra. John Wiley and Soils. Jahrbuch der Chemie. Edited by Richard Meyer. Year I. 1891. Frankfurt lS92. (12ecd. 5/6/7.) From J. Tudor Cundall, Esq. Journal fur praktische Chemie. Edited by Ifemzann Kolbe and Emst won Meyer. New series. Vols. XXIII to XXVIII. Leipzig 61881-1883. (Reccl. 12/6/7.) From Geh. Rath Professor Dr. Liebermann, THE LIBRARY. The Library will be closed throughout t’he mont>h of August, when the Society’s Rooms will be redecorated, and the annual revision of the volumes mill take place. Fellows are particularly request,ed to return all Library Books in th’eir possession not 1ccte.i.than Vednesday, July 31st LIST OF FELLOWS, 1907. The List of Fellows for 1907 is now in active preparation, and changes of address received after 31st July cannot be included in it. In order that the new list may be as complete as possible, those Fellows whose degrees and Christian names do not appear in full are requested to communicate them to the Assistant Secretary. At the next Ordinary Meeting, on Thursday, July 4th, 1907, at 8.30p.m., the following papers will be communicated : “ isoNitroso-and nitro-dimethyldihydroresorcin.” By P. Haas. ‘‘ The structure of carbonium salty.’’ By F. Baker. “Studies of dynamic isomerism. Part VI. The influence of impurities on the mutarotation of nitrocamphor.” By T. M. Lowry and E. H. Magson. “ The relation between absorption spectra and chemical constitution. Part VIII. The phenyl hydrazones and osazones of a-diketonss.” By E. C. C. Baly, W. €3. Tuck, E. G. Marsden, and 1sI. Gazdar. “ Permanganic acid.” By 11. 11. P. Nnir.
ISSN:0369-8718
DOI:10.1039/PL9072300177
出版商:RSC
年代:1907
数据来源: RSC
|
|