Double N-arylation reaction of polyhalogenated 4,4’-bipyridines. Expedious synthesis of functionalized 2,7-diazacarbazoles

Double N-arylation reaction of polyhalogenated 4,4’-bipyridines. Expedious synthesis of functionalized 2,7-diazacarbazoles

Unusual 2,7-diazacarbazoles were prepared in one step from readily available tetra-halogenated 4,4’-bipyridines by using a double N-arylation reaction in the presence of the Pd–XPhos catalyst system. Moderate to good yields were obtained in this site-selective Buchwald–Hartwig double amination. The...

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Bibliographic Details
Main Authors:	Mohamed Abboud, Emmanuel Aubert, Victor Mamane
Format:	Article
Language:	English
Published:	Beilstein-Institut 2012-02-01
Series:	Beilstein Journal of Organic Chemistry
Subjects:	4,4’-bipyridine cross-coupling crystal packing diazacarbazole X-ray diffraction
Online Access:	https://doi.org/10.3762/bjoc.8.26

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