CIESC Journal ›› 2005, Vol. 56 ›› Issue (5): 857-860.
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LV Xiuyang;HE Long;LU Cheng;GAO Fei
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吕秀阳;何龙;鹿骋;高飞
Abstract: An environmentally benign method for synthesis of cinnamaldehyde with near-critical water as reaction medium was proposed.The results showed that cinnamaldehyde could be synthesized successfully through the reaction of phenylaldehyde with acetaldehyde in near-critical water without adding any catalyst.The effects of temperature and reaction time on the conversion of phenylaldehyde and yield of cinnamaldehyde were determined from 220 ℃ to 300 ℃.The yield of cinnamaldehyde was up to 16.6% after 5 hours reaction time at 260 ℃, 16 MPa,volume ration of reactants to water 1∶15.
Key words: 环境友好合成, 苯甲醛, 肉桂醛, 近临界水
摘要: 提出了一种以水为反应介质合成肉桂醛的新方法.在近临界水中,以苯甲醛和乙醛为原料,在无外加任何催化剂的条件下,合成肉桂醛.在温度220~300 ℃范围内,测定了温度和反应时间对苯甲醛转化率和肉桂醛收率的影响.对反应条件进行了优化,在反应温度260 ℃,压力16 MPa,反应物和水体积比1∶15,反应时间5 h条件下,肉桂醛产率可达16.6%.
关键词: 环境友好合成, 苯甲醛, 肉桂醛, 近临界水
LV Xiuyang, HE Long, LU Cheng, GAO Fei. Environmentally benign method for synthesis of cinnamaldehyde[J]. CIESC Journal, 2005, 56(5): 857-860.
吕秀阳, 何龙, 鹿骋, 高飞. 肉桂醛绿色合成新方法 [J]. 化工学报, 2005, 56(5): 857-860.
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