化学试剂
化學試劑
화학시제
CHEMICAL REAGENTS
2009年
11期
868-870,878
,共4页
非离子型表面活性剂%单山嵛酸甘油酯%单脂肪酸甘油酯%酯化
非離子型錶麵活性劑%單山崳痠甘油酯%單脂肪痠甘油酯%酯化
비리자형표면활성제%단산유산감유지%단지방산감유지%지화
nonionic surfactant%glycerin monobehenate%glycerin monofatty acid ester%esterification
采用基团保护法,用甘油与丙酮反应制得异丙叉甘油,再与山嵛酸反应得山嵛酸异亚丙酮基甘油酯,进一步将其水解合成了单山嵛酸甘油酯.探讨了催化剂、携水剂和反应条件对产物含量及收率的影响.以对甲苯磺酸为催化剂,以石油醚-Ⅱ为携水剂时,在n(甘油):n(丙酮):n(山嵛酸)=1.00:2.00:0.75条件下可以制得含量为92.32%、收率为90.58%的单山嵛酸甘油酯.并利用红外光谱和核磁共振技术对产物的结构进行了表征.
採用基糰保護法,用甘油與丙酮反應製得異丙扠甘油,再與山崳痠反應得山崳痠異亞丙酮基甘油酯,進一步將其水解閤成瞭單山崳痠甘油酯.探討瞭催化劑、攜水劑和反應條件對產物含量及收率的影響.以對甲苯磺痠為催化劑,以石油醚-Ⅱ為攜水劑時,在n(甘油):n(丙酮):n(山崳痠)=1.00:2.00:0.75條件下可以製得含量為92.32%、收率為90.58%的單山崳痠甘油酯.併利用紅外光譜和覈磁共振技術對產物的結構進行瞭錶徵.
채용기단보호법,용감유여병동반응제득이병차감유,재여산유산반응득산유산이아병동기감유지,진일보장기수해합성료단산유산감유지.탐토료최화제、휴수제화반응조건대산물함량급수솔적영향.이대갑분광산위최화제,이석유미-Ⅱ위휴수제시,재n(감유):n(병동):n(산유산)=1.00:2.00:0.75조건하가이제득함량위92.32%、수솔위90.58%적단산유산감유지.병이용홍외광보화핵자공진기술대산물적결구진행료표정.
Glycerin monobehenate was synthesized by reacting be-henic acid with isopropylidene glycerin that was prepared by con-densation of acetone with glycerin using the group protection method. The effect of catalyst, dehydrating agent and reaction conditions on the content and yield of glycerin monobehenate was studied. The results showed that when p-toluene sulfonic acid was used as the catalyst,and petroleum ether-Ⅱ was used as the de-hydrating agent at a molar ratio of glycerol: acetone : behenic acid=1.00:2.00:0.75,the product yield was 90.58% with the glycerin monobehenate content reaching 92.32%. The structure of the product was confirmed by melting point measurements, IR and HNMR spectrometry.
