Phosphorus oxychloride → HCID 131716014, compound

Participants

Reaction Steps

To a slurry of 15 g (0.0874 mol) of 2-amino-4chlorobenzoic acid and 150 ml of phosphorous oxychloride is added dropwise 15 g (0.0871 mol) of 4-phenylcyclohexanone. The mixture is stirred at reflux for 3 hours and then concentrated in vacuo. The residue is dissolved in methylene chloride and added slowly to an ice-NH4OH mixture. The mixture is stirred for 1/2 hour and extracted with methylene chloride. The combined extracts are washed with water, dried over Na2SO4, and concentrated in vacuo to yield a dark solid. Trituration with ether provides 20 g (70%) of title compound: m.p. 134°-136° C.; IR 1605, 1585 and 1480 cm-1 ; NMR (CDCl3) δ8.12-8.0 (m, 2H), 7.54-7.46 (m, 1H), 7.44-7.26 (m, 5H), 3.50-2.88 (m, 5H), and 2.28-2.02 (m, 2H).

Provenance & Evidence