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Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles
Yongchao Wang,Angel A. Cobo,Annaliese K. Franz
Organic Chemistry Frontiers Pub Date : 05/07/2021 00:00:00 , DOI:10.1039/D1QO00220A
Abstract

Asymmetric catalytic multicomponent cascade reactions have become indispensable tools for enantioselective construction of spirooxindoles. In recent years, a number of successful strategies have been developed for the synthesis of enantioenriched spirooxindoles in high yield with excellent stereo- and regioselectivity. This review summarizes the recent advances on enantioselective construction of spirooxindoles including spiro[N-heterocycle-oxindoles], spiro[cycloalkane-oxindoles] and spiro[O-heterocycle-oxindoles] catalyzed by chiral phosphoric acids, amines, and bifunctional thiourea/squaramides.

Graphical abstract: Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles
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