摘要
用二氢吡喃保护二乙醇胺的羟基 ,与松香酸甲酯 (RAME)反应制得松香酰二乙醇胺二 (四氢吡喃醚 )后 ,再经羟基解保护后制备松香酰二乙醇胺 (RDEA)。二次回归正交试验优化的合成条件为 :松香酸甲酯与二乙醇胺二 (四氢吡喃醚 )摩尔比 1∶1.6 ,反应温度 93℃ ,反应时间 4 .4h ,催化剂乙醇钠用量为二乙醇胺二(四氢吡喃醚 )的 2 .5 % ,松香酰二乙醇胺得率为 93.87%。性能测定表明 ,松香酰二乙醇胺的发泡能力及泡沫稳定性、乳化能力与十二烷基硫酸钠 (K12 )相当 ,临界胶束浓度较K12 略大。松香甲酯化制备松香酸甲酯的最佳制备条件 :松香与甲醇摩尔比 1∶3、反应时间 1h、反应温度 70℃、催化剂氢氧化钾用量为松香的 2 % ,酯化率为 95 .5 0 %。
Rosin acid methyl ester(RAME) was prepared from rosin acid and carbinol at yield 95.50%.Rosinoyl (diethanolamine) acidamide(RDEA) was then synthesized from rosin acid methyl ester with tetrahydropyrane-2-yl ether of diethanolamine,in which the hydroxyl groups of diethanolamine were pre-protected by tetrahydrofuran.Quadric (orthogonal) experiment result shows that optimum synthetic conditions were as follows:molar ratio of rosin acid methyl ester to tetrahydropyrane-2-yl ether of diethanolamine 1∶1.6,reaction temperature 93 ℃,reaction time 4.4 h,sodium ethoxide as catalyst 2% of tetrahydropyrane-2-yl ether of diethanolamine,yield of the product 93.87%.In addition,surfactant properties of rosinoyl diethanolamine acidamide were also determined,which has good capabilities of (foaming) and emulsification as those of lauryl sodium sulfate(K_(12)).
出处
《林产化学与工业》
EI
CAS
CSCD
2004年第3期31-35,共5页
Chemistry and Industry of Forest Products
关键词
松香酰二乙醇胺
羟基保护
松香酸
二乙醇胺
rosinoyl diethanolamine acidamide
hydroxyl group protecting
rosin acid
diethanolamine
