HCID 68886853, compound → 3-Hydroxy-8-nonyl-2-(2,4,5-trimethoxyphenyl)-4H-1-benzopyran-4-one

Participants

Reaction Steps

A stirring suspension of 3-hydroxy-8-non-2-enyl-2-(2,4,5-trimethoxy-phenyl)-chromen-4-one 76 (0.258 g, 0.6 mmol) and 10% palladium on carbon (0.024 g) in ethyl acetate (30 ml) was placed under an atmosphere of hydrogen for 43 hours. The reaction was filtered through celite, the residue washed with ethyl acetate and the combined filtrates concentrated in vacuo to give a grey solid. Recrystallisation (petrol:ethyl acetate 2:1) yielded 3-hydroxy-8-nonyl-2-(2,4,5-trimethoxy-phenyl)-chromen-4-one 77 (0.212 g, 82%) as an off-white solid.

Provenance & Evidence