Kinetic Resolution of Tertiary Alcohols: Highly Enantioselective Access to 3-Hydroxy-3-Substituted Oxindoles

Authors


  • We are grateful for the generous financial support from Singapore National Research Foundation (NRF Fellowship) and National University of Singapore. We thank Dr. Hailong Yan for helpful discussions.

Abstract

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Enantioselective: The first highly enantioselective kinetic resolution of 3-hydroxy-3-substituted oxindoles has been developed through oxidative esterification catalyzed by a N-heterocyclic carbene (see picture). This method uses a simple procedure and provides 3-hydroxy-oxindoles with various substituents at the 3-position in excellent enantiopurity. S=selectivity.

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