Lithium Bromide, a Novel and Highly Effective Catalyst for Monothioacetalization of Acetals under Mild Reaction Conditions
作者:Fumiaki Ono、Ryojyu Negoro、Tsuneo Sato
DOI:10.1055/s-2001-17477
日期:——
Lithium bromide is efficient as a catalyst for the monothioacetalization of acetals under mild reaction conditions to provide products in excellent yields with high chemoselectivity.
Monothioacetals are obtained by treating the corresponding acetals with organotin thiophenoxides in the presence of BF2·OEt2. The reaction proceeds under mild conditions to provide the desired compounds with high selectivity.