Methanol → Benzenepropanoic acid, 4-hydroxy-, methyl ester

Participants

Reaction Steps

A solution obtained beforehand by adding thionyl chloride (18.3 ml, WAKO) dropwise to methanol (250 ml) under ice cooling was added dropwise with a solution of 3-(4-hydroxyphenyl)propionic acid (16.6 g, TCI) in methanol (50 ml) under ice cooling, stirred for 30 minutes, then warmed to room temperature and further stirred for 1.5 hours. The reaction mixture was concentrated under reduced pressure and then extracted with diethyl ether (200 ml). The organic layer was washed successively with saturated aqueous sodium hydrogencarbonate, saturated aqueous ammonium chloride and saturated brine. The organic layer was dried, and then the solvent was evaporated under reduced pressure to obtain the title compound (Intermediate 1, 17.95 g).

Provenance & Evidence