Cesium fluoride → HCID 23508126, compound

Participants

Reaction Steps

tert-Butyl 8-(2,4-dichlorophenyl)-6-[(triisopropylsilyl)thio]-3,4,4a,9b-tetrahydro[1]benzofuro[3,2-c]pyridine-2(1H)-carboxylate (0.111 g, 0.182 mmol) was dissolved in DMF (3 mL). 1-Iodopropane (0.2 mL) and cesium fluoride (0.060 g) were added to the reaction mixture. The reaction mixture was stirred at rt under N2 for 2.5 h. The reaction mixture was partitioned between EtOAc (30 mL) and 2:3 water:brine (25 mL). The aqueous layer was back extracted with EtOAc (30 mL). The combined organic layers were washed with water (20 mL), with brine (20 mL), dried over Na2SO4, filtered and concentrated under reduced pressure. tert-Butyl 8-(2,4-dichlorophenyl)-6-(propylthio)-3,4,4a,9b-tetrahydro[1]benzofuro[3,2-c]pyridine-2(1H)-carboxylate was obtained in quantitative yield (0.090 g). MS (ESI+) for C25H29Cl2NO3S m/z 517.0 (M+23)+.

Provenance & Evidence