HCID 54067867, compound → HCID 19744878, compound

Participants

Reaction Steps

Then, 21.03 g of the so-obtained 4,4'-dibenzyloxy2'-hydroxy-3'-(3-methyl-2-butenyl)chalcone was added to 200 ml of an ethyl acetate suspension of 7.01 g of 5% palladium/carbon, in which hydrogen had been adsorbed in advance, and the mixture was stirred at room temperature for 6 hours and hydrogen was absorbed. After the reaction, the suspension was filtered to remove the palladium/carbon, and the solvent was removed from the filtrate by distillation and the obtained residue was recrystallized from benzene to obtain 11.85 g (yield=86.6%) of 1-(2,4-dihydroxy-3-isopentylphenyl)-3-(4-hydroxyphenyl)-1-propanone in the form of a colorless needle.

Provenance & Evidence