反应详情

The reaction was run in the same manner as ethyl 1-benzoyl-3-piperidinecarboxylate, starting with ethyl nipecotate (201.8 mg; 1.28 mmol) and commercially available 2-thiopheneacetyl chloride (158 μl; 1.28 mmol). The crude product was distilled at 225° C./0.1 torr, giving ethyl 1-(2-thiopheneacetyl)-3-piperidinecarboxylate (250.5 mg) as a yellow oil, which solidified on standing. MS m/z (positive ion) 304 (M+Na+; 60), 282 (MH+; 100).

1. distillationThe crude product was distilled at 225° C./0.1 torr