Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 85, Issue 16, Pages 11006-11013Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.0c01303
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Funding
- Natural Science Foundation of Fujian Province [2017J01019]
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We herein establish a multicomponent annulation method for the synthesis of valuable iminocoumarins using aryl thiocarbamates, internal alkynes, and sulfonamides as starting materials, which are safe and readily available. The key step is a Rh-catalyzed and sulfur-directed C-H bond activation. Preliminary mechanistic investigations suggested that the nucleophilic attack of the sulfonamide on an active iminium cation finally completes the imine segment.
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