齐齐哈尔大学学报(自然科学版)
齊齊哈爾大學學報(自然科學版)
제제합이대학학보(자연과학판)
JOURNAL OF QIQIHAR UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
5期
67-68,71
,共3页
刘红霞%刘豪凯%张匀%马舒伟%王平
劉紅霞%劉豪凱%張勻%馬舒偉%王平
류홍하%류호개%장균%마서위%왕평
离子液体%缩合%2-乙基-2-己烯醛
離子液體%縮閤%2-乙基-2-己烯醛
리자액체%축합%2-을기-2-기희철
ionic liquids%condensation%2-ethyl-2-hexenal
研究了氢氧化钠催化正丁醛缩合生成2-乙基-2-己烯醛的反应条件,产物收率为76.5%。将两种离子液体应用于该反应,考察了离子液体用量对收率的影响。结果表明,在正丁醛缩合反应中加入离子液体溴代1-丁基-3-甲基咪唑或1-丁基-3-甲基咪唑磷酸二丁酯,产物收率明显提高,分别可以达到93.2%和89.4%。产物结构由核磁共振氢谱进行表征。
研究瞭氫氧化鈉催化正丁醛縮閤生成2-乙基-2-己烯醛的反應條件,產物收率為76.5%。將兩種離子液體應用于該反應,攷察瞭離子液體用量對收率的影響。結果錶明,在正丁醛縮閤反應中加入離子液體溴代1-丁基-3-甲基咪唑或1-丁基-3-甲基咪唑燐痠二丁酯,產物收率明顯提高,分彆可以達到93.2%和89.4%。產物結構由覈磁共振氫譜進行錶徵。
연구료경양화납최화정정철축합생성2-을기-2-기희철적반응조건,산물수솔위76.5%。장량충리자액체응용우해반응,고찰료리자액체용량대수솔적영향。결과표명,재정정철축합반응중가입리자액체추대1-정기-3-갑기미서혹1-정기-3-갑기미서린산이정지,산물수솔명현제고,분별가이체도93.2%화89.4%。산물결구유핵자공진경보진행표정。
The reaction conditions of condensation were studied which transferred the n-butyraldehyde to 2-ethyl-2-hexenal catalyzed by sodium hydroxide with 76.5%yield. Two kinds of ionic liquids were used in this reaction. The influence of the amount of ionic liquids on the yields were studied. The results showed that the reactions were improved significantly by ionic liquids 1-butyl-3-methylimidazolium bromide and 1-butyl-3-methylimidazolium dibutylphosphate,and the yields were improved to 93.2%or 89.4%respectively. The structure of products were characterized by 1 H NMR.