2,3-dihydro-7-hydroxy-8-propyl-4H-1-benzopyran-4-one → HCID 19921929, compound

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Reaction Steps

Starting with 0.242 g (1.17 mmol) of 2,3-dihydro-7-hydroxy-8-propyl-4H-1-benzopyran-4-one and 0.604 g (1.17 mmol) of (E)-2-(6-bromo-1-hexenyl)-5-[[3-(ethoxycarbonyl)phenyl]carbonyl]benzenepropanoic acid ethyl ester, the title compound was obtained (97 mg; 15.8% overall yield) as a white solid, mp 105°-109° C. (recrystallized from hexane-ethyl acetate), using the procedure of example 22.

Provenance & Evidence