Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2010, Issue 6, Pages 1046-1051Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200901107
Keywords
Bromine; Multicomponent reactions; Wittig reactions; Oxygen heterocycles; Natural products
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Funding
- Centre National de Recherche Scientifique (CNRS)
- European Union (EU) [MEST-CT-2005-020580]
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Functionalized 3-bromocoumarins 2 have been prepared by a simple one-pot bromination/Wittig/cyclization tandem process from methyl (triphenylphosphoranylidene) acetate, N-bromosuccinimide and a series of 2-hydroxybenzaldehydes. Owing to the commercial availability of salicylaldehyde derivatives, this approach offers such a diverse range of compounds that it. fulfills the recent demand for the generation of large combinatorial chemical libraries based on the coumarin scaffold.
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