3-Hydroxypiperidine → 1-(2-Thiopheneacetyl)-3-hydroxypiperidine

Participants

Reaction Steps

This reaction was run in the same manner as ethyl 1-benzoyl-3-piperidinecarboxylate, starting with commercially available 3-hydroxypiperidine (1.03 g; 10.2 mmol) and 2-thiopheneacetyl chloride (1.2 ml; 10 mmol) and diisopropylethylamine (1.9 ml; 10.9 mmol). The crude product was purified by chromatography on silica, eluting with 100% ethyl acetate, giving 1-(2-thiopheneacetyl)-3-hydroxypiperidine (1.49 g) as a yellow oil, which solidified on standing. MS m/z (positive ion) 248 (M+Na+; 50), 226 (MH+; 100).

Provenance & Evidence