A Catalytic Asymmetric Electrocyclization-Protonation Reaction
作者:Magnus Rueping、Winai Ieawsuwan
DOI:10.1002/adsc.200800623
日期:2009.1
The first enantioselective Brønsted acid-catalyzed electrocyclization-protonationreaction has been developed which provides a number of different cyclopentenones in good yields and with high enantioselectivities. The stereodetermining step of this asymmetric Nazarov cyclization reaction is an asymmetric Brønsted acid-catalyzed kinetic protonation.