期刊
TETRAHEDRON LETTERS
卷 49, 期 18, 页码 2926-2930出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.03.020
关键词
C-H bond activation; vinyl halides; palladium; catalysis; benzoxazole
Alkenyl bromides were found to be useful reactants for the palladium-catalysed direct C-H activation/functionalisation reaction of heteroaromatics such as benzoxazole or benzothiazole. Moderate to good yields of coupling products were obtained using both alpha- and P-substituted alkenyl bromides or even the trisubstituted alkenyl bromide 2-bromo-3-methylbut-2-ene. This reaction is environmentally attractive as it provides only HX associated to the base as a by-product. (c) 2008 Elsevier Ltd. All rights reserved.
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