Stereoselective photocycloaddition of silyl enol ethers to aldehydes. Configurational control of three stereogenic centers in oxetanes
作者:Thorsten Bach
DOI:10.1016/s0040-4039(00)78199-8
日期:1994.8
The photocycloaddition of unsymmetrically substituted alkenes to an aldehyde leads to eight possible isomeric oxetanes. In sharp contrast to most other substrates, silyl enolethers 1 which bear a vinylic β-substituent favor only a single stereo- and regioisomer 2 as major product of this reaction.