Highly stereoselective access to 2,4- and 2,4,5-substituted tetrahydrofurans from α-silylacetic esters. A study of homoallylic stereocontrol.
摘要:
Cis-2,4- and cis-cis-2,4,5-substituted tetrahydrofurans have been prepared stereoselectively using electrophile-mediated cyclization of beta-hydroxyhomoallylsilanes, readily available from alpha-silylacetic esters.