HCID 11267833, compound → HCID 23134877, compound

Participants

Reaction Steps

An ethanol solution (1.5 ml) of 3-chloro-5-(1-hydroxy-3,7-dimethyl-6-octenyl)-4,6-dihydroxy-2-methylbenzaldehyde (220) (196 mg, 0.57 mmol) was stirred at 0° C. in the presence of 5% Pd/C (50 mg) in a hydrogen atmosphere for 2 hours. After the catalyst was separated by filtration with the use of Celite, the filtrate was concentrated to obtain a crude product (188 mg). This crude product was purified by silica gel column chromatography (hexane:ethyl acetate=20:1) to obtain 3-chloro-5-(1-hydroxy-3,7-dimethyloctyl)-4,6-dihydroxy-2-methylbenzaldehyde (222, a diastereomeric mixture, red syrup 69 mg, crude yield 35%).

Provenance & Evidence