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作 者:王春[1] 张英群[1] 李敬慈[1] 李贵深[1] 李晓陆[1]
出 处:《应用化学》2003年第8期809-813,共5页Chinese Journal of Applied Chemistry
基 金:河北省自然科学基金资助项目 ( 2 9915 8)
摘 要:The solid condensation of isopropylidene malonate with aromatic aldehydes were carried out by grinding at room temperature or heating at 110~120 ℃ to give 5 arylidene 2,2 dimethyl 1,3 dioxane 4,6 dione . Both conditions afford the condensation high reaction activity. The yield of the product under grinding for 20 min followed by standing for 48 h at room temperature is 56%~80% and that by heating at 110~120 ℃ for 12 min is 55%~74%, respectively.The solid condensation of isopropylidene malonate with aromatic aldehydes were carried out by grinding at room temperature or heating at 110~120 ℃ to give 5 arylidene 2,2 dimethyl 1,3 dioxane 4,6 dione . Both conditions afford the condensation high reaction activity. The yield of the product under grinding for 20 min followed by standing for 48 h at room temperature is 56%~80% and that by heating at 110~120 ℃ for 12 min is 55%~74%, respectively.
关 键 词:二甲基芳亚甲基二氧六环二酮 芳香醛 丙二酸亚异丙酯 固相缩合反应
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