Synthesis of Coumarins and Neoflavones through Zinc Chloride Catalyzed Hydroarylation of Acetylenic Esters with Phenols

Abstract Acetylenic esters react with oxygenated phenols under solvent-free conditions in the presence of only 5 mol% of zinc chloride as a catalyst to give coumarins and neoflavones in reasonable-to-good yields.

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Bibliographic Details
Published in:Synthesis (Stuttgart) 2011-11, Vol.2011 (22), p.3692-3696
Main Authors: Leão, Raquel A., de F. de Moraes, Paula, Pedro, Marcella C., Costa, Paulo R.
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Heterocyclic compounds
Heterocyclic compounds with o, s, se, te hetero atom and condensed derivatives
Noncondensed benzenic compounds
Organic chemistry
Preparations and properties
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Description
Summary:Abstract Acetylenic esters react with oxygenated phenols under solvent-free conditions in the presence of only 5 mol% of zinc chloride as a catalyst to give coumarins and neoflavones in reasonable-to-good yields.
ISSN:0039-7881
1437-210X
DOI:10.1055/s-0031-1289576