Efficient alkylsulfanyl (SMe, SEt and SCH2Ph) and sulfanyl (SH) migration in the stereospecific synthesis of substituted tetrahydrofurans
作者:Jason Eames、Ray V.H Jones、Stuart Warren
DOI:10.1016/0040-4039(96)00946-x
日期:1996.7
Treatment of a series of 4-RS-1,3-diols (R=Me, Et, Bn and H) with TsOH in CH2Cl2 gives substituted tetrahydrofurans. We discuss the scope of this reaction using structural variation of the migrating (RS) substitutent All reactions proceeed in high yield and give synthetically useful products. Copyright (C) 1996 Elsevier Science Ltd
Scope and limitations of the [1,2]-alkylsulfanyl (SMe, SEt and SCH2Ph) and sulfanyl (SH) migration in the stereospecific synthesis of substituted tetrahydrofurans †
作者:Jason Eames、Nikolai Kuhnert、Stuart Warren
DOI:10.1039/b007284m
日期:——
dichloromethane gives stereospecifically substituted tetrahydrofurans via a [1,2]-SR shift in near quantitative yield. We comment on the structural variation of the migrating (RS) substituent and that of the migration origin and terminus on the outcome of the title reaction. We also report on the surprising similarity between an alkylsulfanyl (RS) and sulfanyl (SH) migrating group.