摘要:

AbstractWith the aid of the molecular refraction and the infrared absorption, the structure of the condensation products of 3‐aminopropanol with 14 carbonyl compounds has been investigated. In some cases, tetrahydro‐1,3‐oxazines, in some Schiff bases, and in some, mixtures of these two possible products have been obtained. On the whole, there is a greater tendency towards the formation of cyclic structures from 3‐aminopropanol than from 2‐aminoethanol; in both cases the tendency is increased by alkylation of the carbon skeleton of the aminoalcohol.The tetrahydro‐1,3‐oxazines are as susceptible to hydrolysis as the

ISSN:0165-0513    

DOI:10.1002/recl.19590780502

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

Abstract3‐Mercaptopropylamine gives with formaldehyde and cyclohexanone tetrahydro‐1,3‐thiazines, whilst with benzaldehyde largely the corresponding Schiff base is obtained.Some observations on the synthesis of 3‐mercaptopropylamine are r

ISSN:0165-0513    

DOI:10.1002/recl.19590780503

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractThe condensation of 4‐hydroxybutylamine with various carbonyl compounds gave a cyclic compound (hexahydro‐1,3‐oxazepine) only in the case of formaldehyde. Benzaldehyde and acetophenone yielded the corresponding Schiff bases, cyclohexanone a mixture of the Schiff base with the isomeric cyclic compound. 4‐Mercaptobutylamine gave with cyclohexanone only the (cyclic) hexahydro‐1,3‐thiazepine.Easy methods for the preparation of the two substituted amines ar

ISSN:0165-0513    

DOI:10.1002/recl.19590780504

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractThe behaviour of tetramethyleneglycol towards aldehydes and ketones has been compared with that of ethyleneglycol and trimethyleneglycol. There is a certain disinclination to form the seven‐membered 1,3‐dioxepane ring. In several instances, open‐chain acetals have been obtained; many ketones did not react at all or only under relatively stringent conditions.The infrared spectra of the condensation products have been determined and compared with those of the 1,3‐dioxolanes and 1,3

ISSN:0165-0513    

DOI:10.1002/recl.19590780505

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19590780506

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

ISSN:0165-0513    

DOI:10.1002/recl.19590780507

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractThe synthesis and properties of some new compounds connected with diphenyl (β‐pyridyl) carbinol, viz. diphenyl (β‐pyridyl) carbinol hydrochloride, diphenyl (β‐pyridyl) chloromethane and its hydrochloride, bis[diphenyl‐ (β‐pyridyl) methyl] peroxide and a compound C36H28N2, are described. The peroxide is very probably produced from the diphenyl (β‐pyridyl)‐methyl radica

ISSN:0165-0513    

DOI:10.1002/recl.19590780508

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractA number of ethyl orthothioesters has been prepared by refluxing acid chlorides with ethanethiol and zinc chloride. The substances very easily lose one mole of ethanethiol by distillation in the presence of traces of acids, affording the thioacetals of substituted ketenes VII. The structure of the latter compounds follows from the hydrolysis of their sulphones VIII into the next lower aldehydes IX and bis (ethanesulphonyl) methane X.It is pointed out, that interesting reactions can be carried out by making use of various methods for the introduction and elimination of thioether groups (see reaction schemes on pages 5 and 6).

ISSN:0165-0513    

DOI:10.1002/recl.19590780509

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractDie vorliegende Arbeit beschäftigt sich mit der Darstellung von bisher nicht beschriebenen höheren Homologen der Isodehydracetsäure und deren Ester. Diese Verbindungen zeigen antibakterielle Wirkungen bei verschiedenen Bakterienart

ISSN:0165-0513    

DOI:10.1002/recl.19590780510

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY

摘要:

AbstractThe condensation products of rhodanine, 3‐ethylrhodanine and 3‐phenylrhodanine with various trialdehydes containing a 1,3,5‐triazine ring have been prepared for bacterial and fungicidal evaluation. The condensation of rhodanine and its derivatives with aldehydes, previously described for mono and dialdehydes, has thus been extended to the trialdehydes. The 1,3,5‐triazine ring is itself the basis of compounds of known fungicidal properties and may therefore enhance the already known fungicidal character of the substituted rhodanines. The trialdehydes are novel compounds which were prepared by the interaction of the hydroxybenzaldehydes and 2,4,6‐trichloro‐1,3,5‐triazine. Condensations between the rhodanines and the trialdehydes were carried out in acid medium and crystalline coloured condensation products were obtained

ISSN:0165-0513    

DOI:10.1002/recl.19590780511

出版商:WILEY‐VCH Verlag    

年代:1959

数据来源: WILEY