Highly diastereoselective tandem alkylation of acyclic α,β-unsaturated esters based on the novel use of dithioacetal unit
作者:Hisashi Kawasaki、Kiyoshi Tomioka、Kenji Koga
DOI:10.1016/s0040-4039(00)98610-6
日期:1985.1
Highly diastereoselective tandem alkylation process of acyclic α,β-unsaturated esters was developed based on the novel use of dithioacetal as a stereocontrolling unit.
Cyclopropanes from silyl/sulfur-stabilized carbanions and oxiranes - the interplay of two reaction pathways
作者:Ernst Schaumann、Carsten Friese
DOI:10.1016/s0040-4039(01)93416-1
日期:——
Depending on the sulfur substituent, carbanions 1 react with oxiranes 2 giving either cyclopropanes via a Homo-Peterson reaction or isomers with a shifted phenylthio residue.