Attempted cyclization of indolizines bearing both formyl and alkyne groups under acid catalysis provided benzo[e]pyrido[1,2-a]indoles with an aryl substituent at the C6 position as major products, along with the expected C5-acylated benzo[e]pyrido[1,2-a]indoles as minor ones, which resulted from preferential deformylative intramolecular hydroarylation instead of intended alkyne-carbonyl metathesis.
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© 2015 American Chemical Society.
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Organic Chemistry