New 1,3-dithiol-2-ylidene-alkylsulfonylacetates and their uses
申请人:Hokko Chemical Industry Co., Ltd.
公开号:US04822814A1
公开(公告)日:1989-04-18
As new compound are provided alkyl 1,3-dithiol-2-ylidene-alkylsulfonylacetates which are useful as fungicidal agent and agent for therapeutically treating or preventing a liver disorder as well as agent for reducing the internal fat deposit or preventing excessive accumulation of the internal fat deposit in the body of animals, including humans. These new compounds have improved activities for these applications, as compared to known similar compounds.
Novel reaction: Decarboxylative Ramberg-Bäcklund rearrangement in some α-isopropyl sulfonyl carboxylic esters
作者:Blanka Wladislaw、Liliana Marzorati、Valter F. Torres Russo、Marcio H. Zaim、Claudio Di Vitta
DOI:10.1016/0040-4039(95)01827-5
日期:1995.11
The reaction of some isopropylsulfonyl α-mono and disubstituted esters with KOH/t-BuOH/CCl4 is reported For the α,α-dialkyl and α-monoaryl substituted derivatives the key step of this reaction is proposed to be the decarboxylative 1,3-displacement in the chlorinated intermediates.