
Journal of the Chemical Society. Perkin transactions I p. 2552 - 2556 (1981)
Update date:2022-07-30
Topics:
Bevan, Peter S.
Ellis, Gwynn P.
Wilson, H. Kerr
Treatment of 4-oxochromen-2-carboxyl chloride with dimethylcadmium gave 1-methyl-1-(4-oxochromen-2-yl)ethyl 4-oxochromen-2-carboxylate (11) which was synthesized unequivocally and degraded to the carboxylic acid and 2-(1-methylvinyl)chromen-4-one. 2-Acetylchromen-4-one was synthesized by a new and more efficient method from 4-oxochromen-2-carbonyl chloride.The synthesis and some reactions of 4-oxochromen-2-yl isocyanate, and the cyanomethyl esters of 4-oxochromen-2-carboxylic and -2,6-dicarboxylic acids are descibed.
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