Ethylene Glycol → 1-[5-Chloro-3-(4-hydroxypiperidin-1-yl)-2-methoxy-4-methylphenyl]ethanone

Participants

Reaction Conditions

Reaction Steps

To a mixture of 1-(5-chloro-3-iodo-2-methoxy-4-methylphenyl)ethanone (150 mg, 0.46 mmol) and 4-hydroxypiperidine (56 mg, 0.56 mmol) in isopropyl alcohol (1 mL) was added 1,2-ethanediol (0.052 mL, 0.92 mmol), potassium phosphate (200 mg, 0.93 mmol), and copper(I) iodide (5 mg, 0.02 mmol). The reaction was heated at 80° C. overnight and then cooled to room temperature. Water was added, and the mixture was extracted with ethyl acetate. The combined organic phases were washed with brine and dried over sodium sulfate, filtered and concentrated to dryness. The residue was purified on silica gel, eluting with 0 to 50% ethyl acetate in hexanes, to give the desired product (15 mg, 11%). LCMS calculated for C15H21ClNO3 (M+H)+: m/z=298.1. found: 298.0.

Provenance & Evidence