反应详情

A solution of 1-methyl-5,6,7,8-tetrahydro-1H-cycloheptapyrazol-4-one (0.75 g, 4.6 mmol) in dimethylcarbonate (3 mL) is treated with 60% dispersion of sodium hydride in oil (0.4 g, 10 mmol) as described in Example 1A to yield the title compound: MS (DCI/NH3) m/z 223 (M+H)+.