HCID 54194018, compound → HCID 14882995, compound

Participants

Reaction Steps

A solution of 2.0 g (5.1 mmole) ethyl 3-(4-oxo-7-phenylmethoxy-8-propyl-4H-1-benzopyran-2-yl)-2-propenoate in 40 ml of acetic acid was hydrogenated at 50 psi and 70° over 5% palladium on carbon catalyst. The catalyst was removed by filtration and the filtrate was evaporated to dryness to give 1.3 g of the title compound as an oil. Structure assignment was supported by nmr and infrared spectra.

Provenance & Evidence