Gold-catalyzed tandem Diels–Alder reactions of enynals/enynones with alkenes: generation and trapping of cyclic o-QDMs†
Abstract
An efficient gold-catalyzed method to generate the highly reactive cyclic o-QDM species from the enynal/enynone and alkene is reported. This method allows rapid access to a variety of structurally unique propeller-like products through tandem Diels–Alder reactions.