3,4-Dichlorophenyl isocyanate → HCID 59149951, compound

Participants

Reaction Steps

A solution of 3,4-dichlorophenyl isocyanate (59 mg, 0.31 mmol) in tetrahydrofuran (0.5 ml) was added dropwise at room temperature to a suspension of 2-(3-piperidin-1-yl-propyl)-[1,2,5]thiadiazepane 1,1-dioxide dihydrochloride (intermediate 13; 100 mg, 0.29 mmol) and triethylamine (116 mg, 1.15 mmol) in tetrahydrofuran (2 ml). The reaction mixture was stirred for 16 h, then partitioned between sat. aq. ammonium chloride solution and ethyl acetate. The organic layer was dried (MgSO4), filtered, and evaporated. Chromatography (SiO2; dichloro-methane/methanol/25% aq. ammonia solution 95:5:0.25) produced the title compound (117 mg, 88%). White solid, MS (ISP)=463.0 (M+H)+.

Provenance & Evidence