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Facile Synthesis of Unsymmetrical Acridines and Phenazines by a Rh(III)-Catalyzed Amination/Cyclization/Aromatization Cascade

โœ Scribed by Lian, Yajing; Hummel, Joshua R.; Bergman, Robert G.; Ellman, Jonathan A.


Book ID
120938524
Publisher
American Chemical Society
Year
2013
Tongue
English
Weight
824 KB
Volume
135
Category
Article
ISSN
0002-7863

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## Abstract A variety of nitrogenโ€containing heterocycles were synthesized by passing vapors of aromatic amines over calcium oxide at 450โ€“650 ยฐC under nitrogen carrier gas. Reaction of 2โ€aminobiphenyl 3a at 560 ยฐC gave carbazole 4 in 80% yield. Reaction of 2, 2โ€ฒโ€diaminobiphenyl 3b afforded a mixtur