Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 354, Issue 16, Pages 3087-3094Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201200374
Keywords
N-allylsulfonamide; benzoindolines; 1-bromoethynyl-2-(cyclopropylidenemethyl)arenes; copper(II) acetate; tandem reaction
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Funding
- National Natural Science Foundation of China [21032007, 21172038]
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A copper-catalyzed tandem reaction of 1-bromoethynyl-2-(cyclopropylidenemethyl)arenes with N-allylsulfonamide proceeds smoothly, affording functionalized benzoindolines in moderate to good yields. The transformation is a four-step cascade involving Ullmann coupling, aza-Claisen rearrangement, 6 pi-electrocyclization, and intramolecular rearrangement.
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