A novel enantioselective synthesis of 6H-dibenzopyran derivatives by combined palladium/norbornene and cinchona alkaloid catalysis†
Abstract
Organometallic and organo-catalysts are cooperatively at work in the enantioselective synthesis of dibenzopyran derivatives; palladium/norbornene and a cinchona alkaloid base guarantee good yields and satisfactory enantioselectivities in a one-pot reaction.