作者:C. Oliver Kappe、Gert Kollenz、Regis Leung-Toung、Curt Wentrup
DOI:10.1039/c39920000487
日期:——
Methyleneketenes 2 and imidoylketenes 4, generated from Meldrum'sacid derivatives 1 and 2,3-dihydropyrrole-2,3-diones 3, respectively, both rearrange thermally to oxoketenimines 5; the imidoylketene–oxoketenimine rearrangement is reversible and much accelerated by electropositive migrating groups (SMe).
Processes for the synthesis of N,N'-substituted 1,3-diketimines
申请人:Park Kyung-Ho
公开号:US20070191638A1
公开(公告)日:2007-08-16
Processes for the synthesis of N,N′-substituted 1,3-diketimines (III) from the reaction of aliphatic ketimines with iminothioethers in the presence of base are provided. The processes are particularly useful for making aliphatic N,N′-unsymmetrically substituted 1,3-diketimines.