1374875-75-8Relevant articles and documents
Double N-arylation reaction of polyhalogenated 4,4'-bipyridines. Expedious synthesis of functionalized 2,7-diazacarbazoles
Abboud, Mohamed,Aubert, Emmanuel,Mamane, Victor
experimental part, p. 253 - 258 (2012/05/05)
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-sele