Synthesis of the Carbazole Scaffold Directly from 2-Aminobiphenyl by Means of Tandem C-H Activation and C-N Bond Formation
作者:Hans-René Bjørsvik、Vijayaragavan Elumalai
DOI:10.1002/ejoc.201601191
日期:2016.11
An efficient method for the synthesis of the carbazolescaffold was designed and investigated. The method was developed to produce substituted carbazoles by an intramolecular combination of a free amine group and an arene. The steps of the method involved tandem Pd-catalyzed C–Hactivation and intramolecular C–Nbondformation. The method showed good functional group tolerance, and substituent(s) could
Indium powder as the reducing agent in the synthesis of 2-amino-1,1′-biphenyls
作者:Vijayaragavan Elumalai、Hans-René Bjørsvik
DOI:10.1016/j.tetlet.2016.02.007
日期:2016.3
is disclosed. The method utilizes only a stoichiometric quantity of indium powder as the reducing reagent along with a stoichiometric quantity of ammonium chloride. The work-up is very simple, it requires only a simple filtration of the post-reaction mixture whereupon the reaction medium is removed under reduced pressure. The method was also proven to operate with a variety of functional groups to provide