A General Method for the Preparation of <i>N</i>-Sulfonyl Aldimines and Ketimines
作者:José Luis García Ruano、José Alemán、M. Belén Cid、Alejandro Parra
DOI:10.1021/ol048005e
日期:2005.1.1
[Reaction: see text] A simple procedure to obtain N-sulfonylimines involving the condensation of carbonyl compounds with p-tolyl or tert-butyl sulfinamides followed by oxidation with m-CPBA of the resulting N-sulfinylimines is reported. The method is applicable to aldehydes (aliphatics and aromatics) and ketones (diaryl, dialkyl, and aryl alkyl), even those containing enolizable protons. It also does
PREPARATION OF N-p-TOLYLSULFONYL-(E)-1-PHENYLETHYLIDENEIMINE
作者:Ruano, José Luis García、Alemán, José、Parra, Alejandro、Belén Cid、Oisaki, Kounosuke、Shibasaki, Masakatsu
DOI:10.15227/orgsyn.084.0129
日期:——
Preparation of Cyclic <i>N</i>-<i>tert</i>-Butylsulfonyl Enamines by Rh(II)-Mediated Ring Expansion of α-Diazoesters
作者:Jianbo Wang、Shufeng Chen、Yonghua Zhao
DOI:10.1055/s-2006-926449
日期:2006.5
The anion derived from ethyl diazoacetate adds to N-tert-butylsulfonyl ketimines to give β-tert-butylsulfonylamino α-diazoesters, which are further transformed into cyclic enamines by treatment with Rh2(OAc)4, through 1,2-C-C bond migration of a Rh(II) carbene intermediate.