双氧水氧化所得产物为钙盐,升温反应,后处理后的黄色带粘稠的固体。?操作步骤和反应如下,加了过量的双氧水,除去双氧水后,浓缩加 丙酮 ,总得黄色的东西。请指教! 操作步骤:30% aq H2O2 (315 mL) was added to a vigorously stirred suspension of lactone 5 (170 g, 0.787 mol), CaCO3 (157.4 g, 1.574 mol), and antifoaming agent (2 drops) in H2O (1 L) while the temperature of the mixture was kept at 30–35 °C. The mixture was stirred at r.t. for 3 h and then at 50 °C for 1 h. Excess H2O2 was destroyed by addition of activated MnO2 (1.7 g, 19.5 mmol), and stirring was continued at 50 °C for 30 min. The mixture was filtered and the filtrate was concentrated to ~240 mL in vacuo. Acetone (800 mL) was added, and the mixture was cooled to below 10 °C and kept overnight. The suspension was filtered and the residue was dried to give a white solid; yield: 141 g (92%) 查看更多1个回答 . 2人已关注