Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 22, Pages 5653-5656Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201400602
Keywords
cycloaddition; dyes; heterocycles; photochemistry; synthetic methods
Categories
Funding
- National Science Foundation of China [21232003, 21202053, 21272087]
- National Basic Research Program of China [2011CB808603]
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A photocatalytic formal [3+2] cycloaddition of 2H-azirines with alkynes has been achieved under irradiation by visible light in the presence of organic dye photocatalysts. This transformation provides efficient access to highly functionalized pyrroles in good yields and has been applied to the synthesis of drug analogues. A primary trial of photocascade catalysis merging energy transfer and redox neutral reactions was shown to be successful.
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