摘要:

AbstractFrom a kinetic investigation of the action of ozone on naphthalene and 2,3‐dimethylnaphthalene it appears that in both cases two molecules of ozone are rapidly taken up; the diozonide formed continues to react very slowly with ozone.From the compounds formed upon ozonolysis of 2,3‐dimethylnaphthalene it follows that upon the action of ozone on 2,3‐dimethylnaphthalene two isomeric diozonides are formed; in one diozonide (main product) the O3groups are bound in the methylated six‐membered ring, the other diozonide (by‐product) contains the O3groups in the non‐methylated six‐membered ring.On the strength of theoretical considerations and kinetic investigations of the ozonization reaction, a reaction mechanism is framed according to which the first molecule of ozone adds on to an α‐β bond of the ring system. From the reaction mechanism framed it is inferred what aliphatic and aromatic decomposition products may be formed in the ozonolysis of naphthalene and of 2,3‐dimethylnaphthalene. The decomposition products to be expected have all been found and identified. From the aromatic and aliphatic decomposition products formed in the ozonolysis of 1,4‐dimethylnaphthalene it follows that also upon the action of ozone on this naphthalene homologue a molecule of ozone primarily a

ISSN:0165-0513    

DOI:10.1002/recl.19540730602

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractThe accidental observation of a pronounced shift of the half‐wave potential of oxygen in bacterial media containing small amounts of tween‐80, a surface‐active agent, caused us to investigate the effect of surface‐active agents on the polarographic wave in more detail.As a result of our studying simultaneously the effects on the electrocapillary curve of mercury, this behaviour could be attributed to the formation of an adsorption layer on the mercury surface. The different effects of different types of surface‐active agents on this curve can be understood from their chemic

ISSN:0165-0513    

DOI:10.1002/recl.19540730603

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19540730604

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractThis investigation is carried out on the basis developed for the 1‐1 electrolytes1).With the aid ofRaoult's law and the theory ofArrheniusthe procedure for the calculation of the degrees of ionization is described when the three free ions together bind a H2O particles. The relation thus found is adapted for the elaboration ofTammann's data at 100°.With the aid of the sulphates of positive ions the hydrations of which have been found for the 1‐1 electrolytes, the hydration of the SO4″ ion is calculated, upon which with H2SO4solutions the hydration of the H* ion is found. This is verified with the aid of the acid sulphates having the positive ions already mentioned.The equilibrium between the hydrated ions and the ion triplets is found to be determined by αpa2. Nω/(1‐αpa) = K*, where * indicates that for the constant K, a has been taken into account.The hydrations of a number of bivalent negative ions are calculated. The hydration of the H* ion is dealt with mor

ISSN:0165-0513    

DOI:10.1002/recl.19540730605

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractThis paper describes the compounds obtained by the condensation of chloral with 1,2‐dichloroethene (1,1,3,4,4‐pentachlorobutanone‐2; 1,2,4,4‐tetrachlorobuten‐1‐one‐3; 1,4,4,4‐tetrachlorobuten‐1‐one‐3; α,β,γ,γ‐tetrachloro‐n‐butyryl chloride), some derivatives, and the various reactions used to establish their structure.Decomposition (by the action of aluminium chloride) of 1,1,1,3,4,4‐hexachloro‐2‐methoxybutane, obtained by the condensation of α,β,β,β‐tetrachloroethyl methyl ether with 1,2‐dichloroethene, yielded the same compounds, but in other proportions. An indication of the presence of these compounds was obtained by Raman analysis.The mech

ISSN:0165-0513    

DOI:10.1002/recl.19540730606

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractThe preparation and some properties of three bisglycol‐phosphatidic acids, containing stearic, palmitic or myristic acid as component acid, are describe

ISSN:0165-0513    

DOI:10.1002/recl.19540730607

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractA series of five 2‐n‐alkylnaphthalenes has been synthesized. Several physical properties of these substances have been determined. Their purity has been determined from melting curve d

ISSN:0165-0513    

DOI:10.1002/recl.19540730608

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

摘要:

AbstractThe preparation and orientation of naphthodioxan (2,3‐naphtho‐p‐dioxan (2,3‐dihydro‐naphtho‐[2,3]‐p‐dioxin)), 5‐, 6‐, and 7‐mononitro‐naphthodioxan, 5‐, 6‐, 7‐monoacetylamino‐naphthodioxan, as well as 5‐, 6‐, and 7‐naphthodioxan monosulphonic acid and some der

ISSN:0165-0513    

DOI:10.1002/recl.19540730609

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19540730601

出版商:WILEY‐VCH Verlag    

年代:1954

数据来源: WILEY