4.8 Article

A Novel Intermolecular Synthesis of γ-Lactones via Visible-Light Photoredox Catalysis

Journal

ORGANIC LETTERS
Volume 15, Issue 23, Pages 6054-6057

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol402954t

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Funding

  1. NSFC [21172102, 21090343]
  2. Ministry of Science and Technology of China [2013CB834804]
  3. Fundamental Research Funds for the Central Universities

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Direct gamma-lactone formation via visible-light photoredox catalysis has been achieved efficiently including hydroxylalkylation of aromatic alkenes and transesterification. The present photocatalytic protocol has good regioselectivity and substrate compatibility, affording a novel way to intermolecular gamma-lactone synthesis by the reaction of styrenes with alpha-bromo esters in the absence of any external oxidants.

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