摘要
以脂肪醛、环氧溴丙烷、吡啶为原料,在三氟化硼乙醚的催化下,通过缩合、N-烷基化反应合成了新型含吡啶环1,3-二氧杂环戊烷的单阳离子表面活性剂——(2-己基-1,3-二氧杂戊环-4)甲烷-1-吡啶盐(2),其结构经1H NMR和IR表征。表面活性测试结果表明,2在20℃时临界胶束浓度为4.5×10-3mol·L-1,Krafft点低于20℃,泡沫稳定性72.7%,乳化性2 min。
A novel 1,3-dioxa cyclopentane single cationic surfactant containing pyridine ring,（2-hexyl-1,3-dioxa-cyclopentane-4）methane-1-pyridinium salt（2）,was synthesized from aliphatic aldehyde,epibromohydrin and pyridine by condensation,then N-alkylation reaction using boron fluoride etherate as the catalyst.The structure was characterized by 1H NMR and IR.The surface activities of 2 were as follows： the critical micelle concentration was 4.5×10-3 mol·L-1 at 20 ℃,Krafft point was lower than 20 ℃,foam stability was 72.7%,emulsifiability time was 2 min.
出处
《合成化学》
CAS
CSCD
北大核心
2012年第1期80-82,共3页
Chinese Journal of Synthetic Chemistry
基金
山西大学本科生科研训练资金资助项目(2011)
