Elena Gala, M. Cordoba, M. Izquierdo
Sep 1, 2014
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Journal
Arkivoc
Abstract
The synthesis of substituted 1-benzyl-1H-pyrrolo(2,3-b)pyridines and 5-benzyl-5H-pyrrolo- (2,3-b)pyrazines has been performed by cycloisomerization of the corresponding N-benzyl- 3-alkynyl-5-arylpyridin(or pyrazin)-2-yl amines with AuCl 3. Alkynylamines have been obtained starting from 3-bromo-5-substituted N-(pyridin- or pyrazin-2-yl)pyridinium aminides in a regioselective way.