Regio- and Stereocontrolled Stannylmetallation of 3,3-diethoxy-prop-1-yne and 4,4-diethoxy-but-1-yne : An efficient access to the corresponding vinyltins with fixed configurations
摘要:
Stannylmetallation of propargyl or homopropargyl acetals has been exploited to obtain the corresponding vinyltin as a single geometrical isomer, result of a cis-addition on the triple bond.