作　　者： ; ; ; ; ;

机构地区： 青岛科技大学化工学院

出　　处： 《林产化学与工业》 2007年第6期77-80,共4页

摘　　要： 制备了一种酸功能化离子液体1-(3-磺酸基)丙基-3-甲基咪唑磷酸二氢盐((HSO3-pmim)H2PO4),并用FT-IR、1HNMR、13C NMR对其进行了表征。将其同氯乙酸构成的复合催化体系磺烷基咪唑磷酸盐-氯乙酸((HSO3-pmim)H2PO4-ClCH2COOH)用于催化α-蒎烯水合反应,详细考察了水合反应的影响因素,得到了较佳的反应条件:n(α-蒎烯)∶n((HSO3-pmim)H2PO4)∶n(氯乙酸)∶n(水)6∶1∶6∶30,反应温度80℃,反应时间8 h。在该条件下α-蒎烯转化率为97%,松油醇选择性47.1%。并对催化体系的重复使用性进行了考察,该催化体系不经处理直接重复使用5次时,α-蒎烯转化率仍达83.7%,松油醇选择性51.6%。 An acidic functional ionic liquid 1-（ 3-sulfonic group ）propyl-3-methylimidazole dihydro-phosphate （（ HSO3 -pmim ） H2PO4 ） was prepared and characterized by FT-IR, 1^H NMR and 13^C NMR. Hydration of α-pinene was studied over the composite catalytic system of sulfonie alkylimidazole phosphate-ehloroaeetie acid （ （ HSO3-pmim ） H2PO4-ClCH2COOH ）. The optimum conditions for hydration of α-pinene were obtained as follows ： n（α-pinene） ： n（ （ HSO3-pmim） H2PO4 ） ： n（ ehloroaetie acid ） ： n（water） 6：1 ： 6： 30,reaction temperature 80 ℃ , reaction time 8 h. Under the above conditions, the conversion of α-pinene was 97 % and the seleetivity of terpineol was 47.1%. The reusability of the composite eatalytie system was investigated. Under the optimum eonditions, when the composite eatalytie system was repeatedly used for 5 times, α-pinene eonversion reached 83.7 % and the seleetivity of terpineol was 51.6 %. It also ean be found that the simple experimental and product-isolation procedure eombinated with easy reeovery and reusability of the composite eatalytie system are expected to eontribute to the development of elean and environmentally friendly strategy for the synthesis of α-terpineol.

关 键 词： 蒎烯 水合反应 酸功能化离子液体 催化

领　　域： [化学工程]