Ontology highlight
ABSTRACT:
SUBMITTER: Abboud M
PROVIDER: S-EPMC3302087 | biostudies-literature | 2012
REPOSITORIES: biostudies-literature
Abboud Mohamed M Aubert Emmanuel E Mamane Victor V
Beilstein journal of organic chemistry 20120214
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 functionalization of these tricyclic derivatives was performed by using Pd-catalyzed cross-coupling reactions such as the Stille and Suzuki couplings. Two compounds were analyzed by X-ray diffraction ...[more]