Abstract
A variety of structurally diverse spirocyclohexane oxindoles featuring a quaternary carbon centre have been successfully constructed through an N‐heterocyclic carbene‐catalyzed [4+2] annulation of isatin‐derived enals with α cyano‐β‐methylenones. This domino process exhibits a wide substrate tolerance, operates under mild conditions, and yields products with high enantioselectivity.
Published Version
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