First Practical Hydrozincation of Dienes Catalyzed by Cp2TiCl2. Generation of Allylzinc Reagent and Its Reaction with Carbonyl Compounds
作者:Yuan Gao、Hirokazu Urabe、Fumie Sato
DOI:10.1021/jo00098a005
日期:1994.9
The first practical hydrozincation of butadiene and 2-alkylbutadienes has been achieved by a combination reagent including ZnI2, LiH, and Cp(2)TiCl(2) in a ratio of 1:2.2:0.1 to yield the corresponding allylzinc reagents in THF, which, in turn, react with a variety of carbonyl compounds.