A convenient synthesis of 3-acylindoles via Friedel Crafts acylation of 1-(phenylsulfonyl)indole. A new route to pyridocarbazole-5,11-quinones and ellipticine
Brönsted acid-catalyzed synthesis of diarylmethanes under non-genotoxic conditions
作者:Oscar Mendoza、Guy Rossey、Léon Ghosez
DOI:10.1016/j.tetlet.2011.01.033
日期:2011.4
Triflic acid and triflimide were found to efficiently catalyze the formation of a wide diversity of diarylmethanes from the non-genotoxic benzylic acetates and electron-rich arenes or heteroarenes. The reaction worked best with acetates capable of generating a stabilized benzylic cationic species. In most cases, the reactions were conveniently run in the absence of solvent under mild conditions. (C) 2011 Elsevier Ltd. All rights reserved.
Unusual dimerization of N-protected bromomethylindoles/benzyl bromide with arylmetal halides: generation of indolylmethyl/benzyl radical
作者:Neelamegam Ramesh、Chandran Prakash、Radhakrishnan Sureshbabu、Vasudevan Dhayalan、Arasambattu K. Mohanakrishnan
DOI:10.1016/j.tet.2007.12.047
日期:2008.2
A detailed study on the interaction of N-protected bromomethylindoles with various types of aryl/alkyl Grignard is reported. Full experimental details on the mechanism of the unusual dimerization reaction are presented. (c) 2007 Elsevier Ltd. All rights reserved.