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Publikováno v:
Journal of Chemical Research. 2004:457-459
A synthesis of 4-aryl-7,7-dimethyl-5-oxo-3,4,5,6,7,8-hexahydrocoumarin from aromatic aldehyde, 5,5-dimethyl-1, 3-cyclohexadion and Meldrum's acid catalysed by hexadecyltrimethylammonium bromide in water is described. This method provides several adva