Methanol → HCID 15725733, compound

Participants

Reaction Steps

A mixture of methyl 3,4-diphenyl-lH-pyrazole 1-octanoate (3.40 g, 9 mmol), lithium hydroxide hydrate (1.13 g, 27 mmol), methanol (60 mL), and water (10 mL) was heated at reflux on a steam bath. After 15 minutes, the solution was concentrated in vacuo, diluted with water and 2 N HCl solution until pH =1. The mixture was extracted with methylene chloride, the combined extracts dried, and the solvent evaporated to leave an oil. Dissolution in diethyl ether followed by the addition of hexanes provided 3,4-diphenyl-lH-pyrazole-1-octanoic acid (2.80 g, 86%); m.p. =108°-110° C. MS(CI): m/e =363 (MH+).

Provenance & Evidence