A new procedure for the Juliá–Colonna stereoselective epoxidation reaction under non-aqueous conditions: the development of a catalyst comprising polyamino acid on silica (PaaSiCat)
Abstract
Polyleucine adsorbed onto silica provides a robust, readily-recycled, highly active catalyst for the asymmetric epoxid-ation of the α,β-unsaturated ketones 1, 2 and 3.