Coumarins and related compounds. Part IV. Aluminium chloride-catalysed reaction of phenols with methyl acrylate: a new approach to the synthesis of hydroxycoumarins
- 1 January 1969
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 1,p. 29-33
- https://doi.org/10.1039/j39690000029
Abstract
The synthesis of 5-,6- and 7-hydroxycoumarins by dehydrogenation of the corresponding 3,4-dihydro-derivatives obtained by aluminium chloride-catalysed reaction of dihydric phenols or their derivatives with methyl acrylate is reported. The 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 the basis of spectral evidence and synthesis.Keywords
This publication has 0 references indexed in Scilit: