Hydrochloric Acid → HCID 10111138, compound

Participants

Reaction Steps

To a solution of 27.0 g (0.66 mmol) of Methyl-4-{(E)-2-[3-(3-hydroxypropyl)-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl]vinyl}benzoate in 10 mL of methyl alcohol was added 5 mL of 1 N LiOH. The reaction mixture was heated to reflux. After 4 hours, the reaction mixture was cooled to room temperature, diluted with diethyl ether and acidified with concentrated HCl. The organic layer was separated, washed with brine, dried over sodium sulfate and concentrated under reduced pressure. The residue was purified by crystallization (hexane/ethyl acetate) to give 200 mg (76%) of 4-{(E)-2-[3-(3-hydroxypropyl)-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl]vinyl}benzoic acid (m.p.: 212.8-213.2° C.) 12.

Provenance & Evidence