Allylic trialkylstannanes (1) regioselectively react with allylichalides (2) at room temperature under high pressure (10 kbar) to give head-to-tail coupling products (3) in high yields.
Highly Regioselective Addition of Allylstannanes to Vinyl Epoxides by Lewis Acid Mediation
作者:Yoshinori Naruta、Kazuhiro Maruyama
DOI:10.1246/cl.1987.963
日期:1987.5.5
In the presence of BF3·OEt2, reaction of allylstannanes with vinyl epoxides gives 1,2 or 1,4 addition products in good yield, depending on the substitution at the olefinic terminus. In either case regioselectivity is extremely high. The 1,2 adduct is applied to the elongation of a prenyl unit in polyprenyl compounds.