Water → 3-Cyclohexyl-2-methyl-2-phenylpropanoic acid

Participants

Reaction Conditions

Reaction Steps

A solution of Example 41A (4.02 g, 15.4 mmol) and potassium trimethyl silanolate (11.0 g, 77.2 mmol) in tetrahydrofuran (80 mL) was heated to reflux for 18 hours. The mixture was cooled to 25° C., treated with water (10 mL), and concentrated in vacuo to remove the tetrahydrofuran. The residue was dissolved in water and washed with hexane. The aqueous layer was acidified to pH 1 with 1N hydrochloric acid and extracted three times with ethyl acetate. The ethyl acetate layers were combined, washed with brine, dried with sodium sulfate, filtered, and concentrated in vacuo to give the title compound (3.80 g, 99%). 1H NMR (300 MHz, CDCl3): δ ppm 1.10 m, 6 H) 1.57 m, 8 H) 1.82 m, 1 H) 2.04 m, 1 H) 7.32 m, 5 H).

Provenance & Evidence