Syntheses of Tetrahydrobenzoazepinoindoles and Dihydrobenzodiazepinoindoles via Ring-Opening Cyclization of Activated Aziridines with 2-(2-Bromophenyl)-1H-indoles

Autor: Manas K. Ghorai, Chandan Kumar Shahi, Sajan Pradhan, Navya Chauhan, Aditya Bhattacharyya
Rok vydání: 2017
Předmět:
Zdroj: Organic letters. 19(13)
ISSN: 1523-7052
Popis: Two efficient, modular, step- and pot-economic strategies to access various 5,6,7,12-tetrahydrobenzo[2,3]azepino[4,5-b]indoles and 6,7-dihydro-5H-benzo[5,6][1,4]diazepino[1,7-a]indoles are disclosed that advance via SN2-type regioselective ring opening of enantiopure aziridines with 2-(2-bromophenyl)-1H-indoles at their C3 and indolyl N centers, respectively, followed by Cu-mediated C–N cyclization which furnishes the products in excellent yields with outstanding enantiomeric excesses (up to >99%).
Databáze: OpenAIRE