Coumarins and related compounds. Part IV. Aluminium chloride-catalysed reaction of phenols with methyl acrylate: a new approach to the synthesis of hydroxycoumarins
作者： Arun K. Das Gupta , Rabindra M. Chatterje , Kaustubh R. Das , Brian Green
DOI: 10.1039/J39690000029
关键词: Organic chemistry 、 Dehydrogenation 、 Methyl acrylate 、 Chemistry 、 Aluminium chloride 、 Phenols 、 Aluminium
摘要: The synthesis of 5-,6- and 7-hydroxycoumarins by dehydrogenation the corresponding 3,4-dihydro-derivatives obtained aluminium chloride-catalysed reaction dihydric phenols or their derivatives with methyl acrylate is reported. compound previously described as 5-hydroxydihydrocoumarin has been proved to be 3,4,6,7-tetrahydrobenzo[1,2-b: 5,4-b′]dipyran-2,8-dione on basis spectral evidence synthesis.
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