The scope and limitation of the [1,4]-SPh shift in the synthesis of allylic alcohols†
作者:Varinder K. Aggarwal、Jason Eames、Maria A. de las Heras、Sara McIntyre、Stuart Warren
DOI:10.1039/b005349j
日期:——
Treatment of a series of 4-phenylsulfanyl-1,3-diols with toluene-p-sulfonyl chloride in pyridine gives stereospecifically substituted allylicalcohols in near quantitative yield via a [1,4]-SPh shift. We comment on the structural variation at both the migration origin and terminus on the outcome of the title reaction and define its limits.
Kinetic resolution in asymmetric anti aldol reactions of branched and straight chain racemic 2-phenylsulfanyl aldehydes: asymmetric synthesis of cyclic ethers and lactones by phenylsulfanyl migration
作者:Kelly Chibale、Stuart Warren
DOI:10.1039/p19960001935
日期:——
The kinetic resolution of branched and straight chain 2-phenylsulfanyl aldehydes by the Lewis acid-catalysed asymmetric anti aldol reaction followed by reduction to single enantiomers of 1,3-diols and/or acid-catalysed cyclisation with PhS migration provides a route to enantiomerically pure cyclic ethers and lactones with full stereochemical control.