Lewis-Base-Catalyzed Asymmetric [3 + 3] Annulation Reaction of Morita–Baylis–Hillman Carbonates: Enantioselective Synthesis of Spirocyclohexenes
ACS Catalysis2017Vol. 7(5), pp. 3142–3146
Citations Over TimeTop 10% of 2017 papers
Abstract
A Lewis-base-catalyzed enantioselective [3 + 3] annulation reaction of Morita–Baylis–Hillman (MBH) carbonates with α-arylidene pyrazolinones is described, affording the pyrazolone-fused spirocyclohexenes bearing an all-carbon quaternary stereocenter in high yields with good to excellent diastereoselectivities and excellent enantioselectivities.
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