4-Piperidinecarboxamide → 1-(3,5-Dichloropyridin-4-yl)piperidine-4-carboxamide

Participants

Reaction Steps

General procedure C (See Example 1) was followed using isonipecotamide (380 mg, 3.0 mmol), 3,4,5-trichloropyridine (600 mg, 3.3 mmol), triethylamine (0.84 mL, 6.0 mmol) and NMP (18 mL). The crude product was purified by flash column chromatography on silica gel (CH2Cl2/EtOH, 95:5-91:9) to furnish the title compound as a white solid (0.676 g, 83%); LC-MS (ESI, 4 min) Rt 1.46 min, m/z 274 (100%, [M+H]+); m/z (ESI) C11H13N3OCl2 requires 273.0436, found [M+H]+ 273.0446.

Provenance & Evidence