Borane-catalyzed indole synthesis through intramolecular hydroamination

Autor: Ulrich Flörke, Garrit Wicker, Sebastian Tussing, Jan Paradies, Miriam Ohland
Rok vydání: 2017
Předmět:
Zdroj: Dalton transactions (Cambridge, England : 2003). 46(5)
ISSN: 1477-9234
Popis: The reaction of 2-alkynyl anilines with catalytic amounts of B(C6F5)3 (5 mol%) resulted in the formation of 2-substituted indoles according to an intramolecular hydroamination in good to excellent yields. Reaction intermediates as well as products were characterized by NMR spectroscopy and by X-ray crystallography. The domino hydroamination/hydrogenation sequence allowed the efficient synthesis of tetrahydroquinoline 8 in good yield.
Databáze: OpenAIRE