Phosphine-catalyzed[5+1]annulation reaction of Morita-Baylis-Hillman(MBH)carbonates with 1,3-dicarbonyl compounds has been developed,producing biologically interesting spirocyclohexene derivatives in high yields with ...
We are grateful for the financial support from the National Natural Science Foundation of China (Nos. 21242007, 21102043), Science and Technology Com- mission of Shanghai Municipality (No. 15ZR1409200), and the Fundamental Research Funds for the Central Universities.
The enantioselective allylic amination of Morita-Baylis-Hillman acetates catalyzed by chiral cyclohexane-based thiourea-phosphine catalysts was investigated. In the presence of 20 mol% rosin-derived thiourea-phosphine...