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ORGANIC LETTERS
卷 19, 期 3, 页码 730-733出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b00027
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-
资金
- CSIR, New Delhi under CSIR-ORIGIN project [CSC-0108]
A novel transition-metal-free direct synthesis of 3-substituted isocoumarin from 4-hydroxycoumarin and a benzyne precursor is developed. This synthetic strategy proceeds via C-O and C-C bond cleavage as well as C-O and C-C bond formations in a single reaction vessel by simple treatment with CsF in the absence of catalyst. This methodology affords moderate to good yields of 3-substituted isocoumarins and is tolerant of a variety of functional groups including halide.
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