Hydrochloric Acid → HCID 68512200, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of cyclohexyl(3-methyl-5-phenylthiophen-2-yl)methanol (286 mg) obtained by the above-mentioned reaction and methyl 4-hydroxybenzoate (183 mg) in tetrahydrofuran (20 mL) were added tributylphosphine (0.4 mL) and 1,1′-(azodicarbonyl)dipiperidine (505 mg), and the mixture was stirred at room temperature overnight. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column (0% ethyl acetate/hexane to 15% ethyl acetate/hexane) to give methyl 4-[cyclohexyl(3-methyl-5-phenylthiophen-2-yl)methoxy]benzoate as an amorphous compound. The obtained methyl 4-[cyclohexyl(3-methyl-5-phenylthiophen-2-yl)methoxy]benzoate was dissolved in methanol (3 mL) and tetrahydrofuran (3 mL), 2N sodium hydroxide (2.0 mL) was added, and the mixture was stirred at 60° C. for 1 hr. The reaction mixture was poured into water, and the mixture was acidified with 1N hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure to give the title compound (251 mg, 62%) as a white crystal.

Provenance & Evidence