Phosphorus oxychloride → HCID 58574145, compound

Participants

Reaction Conditions

Reaction Steps

A solution of tert-butyl 2-((2-chloroacetamido)methyl)piperidine-1-carboxylate (590 mg, 2.02 mmol) and POCl3 (5 mL) was stirred at room temperature for 30 min. Then 2-amino-4-bromobenzoic acid (442 mg, 1.94 mmol) was added to the mixture and stirred for another 20 min. After warming slowly to 100° C., the mixture was maintained at 100° C. for 1.5 h. Then the reaction mixture was poured into ice water, adjusted pH to 8 and extracted with ethyl acetate (3×100 mL). The combined organic layers were washed with brine and dried over Na2SO4. After filtration and concentration, the crude product was directly used for the next reaction. MS (ESI): 370, 372 (MH+).

Provenance & Evidence