Herstellung von Iminen durch Gasphasen-Pyrolyse: N-Methyl-äthylidenimin

✍ Scribed by J. Meier; F. Akermann; Hs. H. Günthard

• Publisher: John Wiley and Sons
• Year: 1968
• Tongue: German
• Weight: 368 KB
• Volume: 51
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19680510724

✦ Synopsis

Sumnzary. N-methyl-ethylidenimine (CH,-CH=N-CH,) was obtained by pyrolysis of 2inethylaziridine (CH,-CH-CH-NH) in a gas phase flow system, using quartz as a catalyst.

Pyrolysis of aziridine (CH,-CH,-NH) gave mainly N-methyl-methylenimine (CH,=N-CH,). Under I I the conditions used in this work, pyrolysis of both compounds surprisingly showed cleavage of the CC-bond in the three-membered ring. No monomeric ethylidenimine (CH,-CH=NH) could be isolated by pyrolysis of trimeric ethylidenimine (2,4,6-trimethyl-hexahydro-l, 3,5-triazine), whereas N-vinyl-ethylidenimine (CH,-CH=N-CH=CH,) could be identified as one of the pyrolysis products. NMR. data for N-methyl-ethylidenimine and N-vinyl-ethylidenimine are given for identification purposes.