作者:Peter Mohr
DOI:10.1016/0040-4039(95)01490-9
日期:1995.10
Z-5-Hydroxy-alk-2-enyl-silanes of general structure 1 are cyclopropanated by an excess of CH2I2/Et(2)n in good yield and excellent stereoselectivity. Ensuing protodesilylation, however, lacks efficient regiocontrol and affords syn-products 5 in modest yield bur high stereochemical purity.