反应详情

温度

0 °C

The reaction product was refined to obtain 95 g (0.6 mol) of 2-pentyl-2-cyclopentenone. Moreover, 95 g (0.6 mol) of 2-pentyl-2-cyclopentenone was dropped to a solution, prepared by dissolving 118 g (0.9 mol) of dimethyl malonate in 38 g of methanol anhydride in a nitrogen atmosphere, cooling the mixture to 0° C. and adding 6.5 g (0.036 mol) of sodium methoxide (30% methanol solution), at 0° C. over 2 hours. After the addition was finished, unreacted dimethyl malonate was vacuum-distilled to obtain 160 g of dimethyl 2-pentyl-3-oxo-cyclopentylmalonate.

1. customprepared
2. additionAfter the addition
3. distillationunreacted dimethyl malonate was vacuum-distilled