Chalkones: synthesis of 1-p-alkoxyarylidene-5 : 6-benzocoumaran-2-ones

Khanolkar, A. P. ; Wheeler , T. S. (1938) Chalkones: synthesis of 1-p-alkoxyarylidene-5 : 6-benzocoumaran-2-ones Journal of the Chemical Society . pp. 2118-2119. ISSN 0368-1769

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Official URL: http://pubs.rsc.org/en/content/articlelanding/1938...

Related URL: http://dx.doi.org/10.1039/JR9380002118

Abstract

l-Hydroxy-2-naphthyl p-alkoxystyryl ketone dibromides, ahich normally yield flavones with alcoholic alkali, give b-alkoxy-compounds and then arylidenecou-maranones, if the solubility of the dibromide in alcohols is increased by addition of chloroform. With aqueous alkali and acetone the dibromides give the corresponding naphthaflavones (ef. Nadkarni et. al., J., 1937,1798).

Item Type:Article
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