Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2015, Issue 11, Pages 2405-2410Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201500109
Keywords
Synthetic methods; Nitrogen heterocycles; Carbonylation; Cyclization; Palladium
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Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi
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A simple and efficient palladium-catalyzed carbonylative cyclization of N-substituted 2-iodobenzamides and 2-iodoanilides was investigated for the synthesis of phthalimides and benzoxazinones, respectively, by using phenyl formate as a CO source. The present catalytic protocol circumvents the use of an expensive phosphine ligand as well as solvent in the case of the phthalimide synthesis. Moreover, mild reaction conditions and a tolerance of various functional groups enhance the general applicability of this method.
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