Enantio- and Diastereoselective Spiroketalization Catalyzed by Chiral Iridium Complex
作者:James Y. Hamilton、Simon L. Rössler、Erick M. Carreira
DOI:10.1021/jacs.7b02856
日期:2017.6.21
complex-catalyzed enantio- and diastereoselective formation of substituted spiroketals from racemic, allylic carbonates is reported, which enables the installation of multiple stereogenic centers in a single operation. The protocol was effective for the preparation of a collection of spiroketals of various ring sizes and substituents, including heteroatoms with high enantio- and diastereoselectivity. Furthermore