反应详情

To a solution of (RS)-2-(2-benzofuranylcarbonyl)-1-(tert-butyloxycarbonyl)piperidine (0.30 g, 0.91 mmol) in diethylene glycol (20 g), was added hydrazine hydrate (0.16 ml, 2.79 mmol) and the resultant mixture heated at 170° C. for 30 min. then cooled to room temperature. Potassium hydroxide (0.44 g, 7.86 mmol) was added and the mixture heated at 200° C. for 18 h. The resultant was then poured into water (100 ml) and extracted with diethyl ether (3×20 ml). The combined organic extracts were dried (Na2SO4) and evaporated in vacuo to give the title compound (10 mg, 36%) as a golden oil.

1. temperaturethe mixture heated at 200° C. for 18 h
2. extractionextracted with diethyl ether (3×20 ml)
3. dry with materialThe combined organic extracts were dried (Na2SO4)
4. customevaporated in vacuo