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微波促进活性炭负载磷钨酸催化合成短链季戊四醇双缩醛
Catalytic Synthesis of Short-chain Pentaerythritol Diacetals by Phosphotungstic Acid Supported on Active Carbon under Microwave Irradiation
【摘要】 以活性炭负载磷钨酸为催化剂,用微波辐射法合成了5种短链季戊四醇双缩醛(3a~3 e),其中季戊四醇双缩丙醛(3b)未见文献报道。3的结构经1H NMR,IR和元素分析表征。
【Abstract】 Five short-chain pentaerythritol diacetals(3a~3e) were synthesized by condensation reaction of pentaerythritol with short-chain aldehydes using phosphotungstic acid supported on active carbon as the catalyst under microwave irradiation.Among 3a~3e,diacetal of pentaerythritol with n-propylaldehyde(3b) is a new compound.The structures of 3 were characterized by 1H NRM,IR and elemental analysis.
【关键词】 微波;
短链双缩醛;
季戊四醇;
活性炭负载磷钨酸;
合成;
【Key words】 microwave; short-chain diacetal; pentaerythritol; phosphotungstic acid supported on active carbon; synthesis;
【Key words】 microwave; short-chain diacetal; pentaerythritol; phosphotungstic acid supported on active carbon; synthesis;
【基金】 湖南省教育厅科研资助项目(2007A);湖南省重点学科建设资助项目(2006-180)
- 【文献出处】 合成化学 ,Chinese Journal of Synthetic Chemistry , 编辑部邮箱 ,2007年04期
- 【分类号】O643.32;O623.5
- 【被引频次】6
- 【下载频次】185