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  • 1955-1959  (1)
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  • 1
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Some hexahydrotriazine derivatives have been prepared. Trimeric methylene aniline, trimeric methylene p-chloroaniline and trimeric methylene p-bromoaniline were each obtained in two isomeric forms. Conditions for the conversion of either isomer into the other are described. N-alkylated hexahydrotriazines and trimeric formaldoxime derivatives could not be separated in isomeric forms.It was shown by the reaction with diphenylketene and isolation of the resulting β-lactam that methylene aniline is split off from 1,3,5-triphenyl hexahydrotriazines upon heating in solution.Linear polymers of methylene aniline and copolymers with vinyl derivatives could not be obtained.
    Notes: Bei der Darstellung von Hexahydrotriazinderivaten wurden im Falle des trimeren Methylenanilins, des trimeren Methylen-p-chloranilins und des trimeren Methylen-p-bromanilins je zwei geometrisch isomere Formen isoliert. Umlagerungsbedingungen für die Isomeren werden beschrieben. Von N-alkylierten Hexahydrotriazinen und trimeren Formaldoximderivaten konnten keine isomeren Formen gefunden werden.Durch Umsetzung mit Diphenylketen und Isolierung des resultierenden β-Lactams wurde nachgewiesen, daß bei thermischer Aufspaltung des 1,3,5-Triphenyl-hexahydrotriazins monomeres Methylenanilin entsteht.Makromolekulare Polymerisationsprodukte des Methylenanilins und entsprechende Copolymerisate mit Vinylverbindungen konnten nicht dargestellt werden.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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