Allylation Of Novel β-Phenylthio Substituted gem-Difluoroallylic Bromide to Carbonyl Compounds
摘要:
The reaction of beta-phenylthio substituted gem-difluoroallylic bromide 3 with aldehydes and ketones in the presence of Zn(Cu) in THF at reflux temperature afforded the corresponding homoallylic alcohols 4 in good yields.
Synthesis of 2-Fluoro-3-phenylthio-1,3-butadiene and 2-Trifluoromethyl-3-phenylthio-1,3-butadiene and Their Reactivities toward Various Dienophiles
作者:Kamaldeep Paul、Ji Hye Hwang、Ji Hoon Choi、In Howa Jeong
DOI:10.1021/ol901867q
日期:2009.10.15
A general approach for the synthesis of novel 2-fluoro-3-phenylthio-1,3-butadiene (8) and 2-trifluoromethyl-3-phenylthio-1,3-butadiene (9) from monobromoalkene and dibromoalkenes has been developed. Subsequent Diels−Alder reactions of these dienes with symmetrical and unsymmetrical dienophiles in the presence of Lewis acids gave a variety of fluorinated six-membered carbocycles in moderate to high
Efficient synthesis of novel α-aryl(alkyl)-β, β-difluorovinyl and α-aryl(alkyl)-β-fluoro-β-perfluoroalkylvinyl sulfides
作者:In Howa Jeong、Yong Ki Min、Young Sup Kim、Bum Tae Kim、Kwang Yun Cho
DOI:10.1016/0040-4039(94)80117-7
日期:1994.10
1-vis(phenylthio)perfluoroalkyl aromatics or alkanes with a mixture of 2 equiv. of TiCl4 and 4 equiv. of LiAlH4 in THF at reflux temperature for 3 hours afforded α-aryl(alkyl)-β-fluoro-β-perfluoroalkylvinyl and α-aryl (alkyl)-β-fluoro-β-perfluoroalkylvinylsulfides in good yields.