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- Title
Metal-Free Radical 5-exo-dig Cyclizations of Phenol-Linked 1,6-Enynes for the Synthesis of Carbonylated Benzofurans.
- Authors
Hu, Ming; Song, Ren ‐ Jie; Li, Jin ‐ Heng
- Abstract
A new metal-free radical 5- exo-dig cyclization of phenol-linked 1,6-enynes with O2, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), and tBuONO is described. With this general method, carbonylated benzofurans can be accessed through incorporation of two oxygen atoms into the product from O2 and TEMPO through dioxygen activation and oxidative cleavage of the NO bond, respectively.
- Subjects
ENYNES; FUNCTIONAL groups; HETEROCYCLIC compounds; BENZOFURANS; PHENOL
- Publication
Angewandte Chemie, 2015, Vol 127, Issue 2, p618
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201408978