Dimethyl Sulfoxide → HCID 20199150, compound

Participants

Reaction Steps

Dimethyl sulphoxide (304 mg) was added to a solution of oxalyl chloride (254 mg) in dichloromethane (20 ml) at -60° under nitrogen for 2 min. and a solution of 1-methyl-5-[[4-[3-(1-piperidinylmethyl)phenoxy]butyl]amino]-1H-1,2,4-triazole-3-methanol (0.5 g) in dichloromethane (10 ml) was added. The mixture was stirred at -50° to -60° for 15 min. and then quenched with triethylamine (657 mg). The solution was allowed to warm to 25° and was diluted with water. The aqueous phase was extracted with dichloromethane and the combined organic extracts were dried and evaporated to leave the title compound as a pale yellow oil (0.4 g).

Provenance & Evidence