Amino acid-derived hydroxamic acids as chiral ligands in the vanadium catalysed epoxidation
作者:Andrei V. Malkov、Zaïnaba Bourhani、Pavel Kočovský
DOI:10.1039/b505324b
日期:——
New sulfonamide-derived hydroxamicacids have been developed as chiralligands for the V-catalysed asymmetricepoxidation, showing high reactivity at subzero temperatures and moderate to good enantioselectivity. The strong accelerating effect exhibited by the ligands of this type can be attributed to the sulfonamide functionality. A range of cinnamyl type allylicalcohols were epoxidised with up to