A new synthesis of 4-hydroxycoumarins

Anand, Nitya ; Venkataraman, K. (1948) A new synthesis of 4-hydroxycoumarins Proceedings of the Indian Academy of Sciences - Section A, 28 (4). pp. 151-159. ISSN 0370-0089

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Official URL: http://www.ias.ac.in/j_archive/proca/28/4/151-159/...

Related URL: http://dx.doi.org/10.1007/BF03171077


4-Hydroxynaphthocoumarin has been synthesised by the internal condensation ofO-carbethoxy-2-acetyl-1-naphthol, thus suggesting a new general method for the synthesis of 4-hydroxycoumarins. The behaviour of 4-hydroxynaphthocoumarin has been studied; its derivatives including the corresponding dicoumarin have been prepared. By the action of potassium carbonate or sodamide on the carbethoxy ester of 2-acetyl-1-naphthol, a second product was obtained, the constitution of which is under examination.

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