practical method for the regioselective halogenation of fused heterocyclicN-oxides has been developed. It employs Vilsmeier reagent, generated in situ by POX3 and DMF, as both the activating agent and the nucleophilic halide source. The method is amenable across a broad range of substrates, including quinolines, isoquinolines and the diazine N-oxides, possessing a variety of substitution patterns. Furthermore
Cyclohexane and cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.
Cyclohexane and cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.
Cyclohexane and cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.
Flexible palladium-catalysed amidation reactions for the synthesis of complex aryl amides
作者:Christopher Barfoot、Gerald Brooks、Pamela Brown、Steven Dabbs、David T. Davies、Ilaria Giordano、Alan Hennessy、Graham Jones、Roger Markwell、Timothy Miles、Neil Pearson、Christian A. Smethurst
DOI:10.1016/j.tetlet.2010.03.051
日期:2010.5
This Letter describes the synthesis of complex aryl amides using palladium-catalysed amidation reactions. Use of these conditions allowed for the coupling of a variety of aryl halides and triflates with a host of primary amides in high yields. (C) 2010 Elsevier Ltd. All rights reserved.