Toluene → HCID 54228505, compound

Participants

Reaction Steps

A 50 mL round bottom flask was charged with (+)-(4aR)-(10bR)-4-methyl-8-hydroxy-10b-methyl-1,2,3,4,4a,-5,6,10b-octahydrobenzo[f]quinolin-3-one (300 mg, 1.22 mmol), tetrabutylammonium chloride (339 mg, 1.22 mmol), 2-chloroquinoline (200 mg, 1.22 mmol), 4 mL of 50% sodium hydroxide solution, and 4 mL of toluene, fitted with a reflux condenser, and the stirred mixture was heated at 100°, under nitrogen, for 24 h. The mixture was cooled, diluted with water (50 mL) and extracted with chloroform (3×100 mL). The combined organic extracts were dried over sodium sulfate, concentrated, and purified by silica gel chromatography (60% ethyl acetate/hexanes eluent; followed by an additional chromatography on a short silica column, eluting with 10% ethyl acetate/dichloromethane) to give 52 mg (11%) of the title compound as a white solid. mp 172°-174°. FDMS: m/e=372. α[D]589 =+67.74 (c=0.43, chloroform).

Provenance & Evidence