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Communication | Regular issue | Vol 19, No. 10, 1982, pp.1819-1822
Published online, 1st January, 1970
DOI: 10.3987/R-1982-10-1819
A New Synthesis of 4-Chromanones

Jaime Primo, Rosa Torma, and Miguel A. Miranda

*Department of Toxicology, University of Cagliari, Via Ospedale 72, I-09124 Cagliari, Italy


Aryl esters of α,β-unsaturated carboxylic acids undergo photorearrangement, followed by basic cyclization, to give 4-chromanones. Reduction/dehydration of these compounds affords 2H-chromenes in excellent overall yields.