不引入有机溶剂,低温下将对甲苯磺酰氯与β-环糊精在NaOH水溶液中进行非均相反应,得到了单6-氧-对甲苯磺酰-β-环糊精酯(6-OTs-β-CD).借助1H NMR谱证实了环糊精单磺酰化机理.考察了产物的水解因素,研究了反应条件对产率的影响.实验结果表明,投料摩尔比n(CD)∶n(TsCl) =4∶1,碱液浓度0.75 mol/L,反应物质量分数4.7%,反应温度0℃,反应5h时,6位单酯化收率为43.4%.
参考文献
[1] | TONG Linhui.Cyclodextrin Chemistry-Fundamental and Applications[M].Beijing:Science Press,2001:6-8 (in Chinese).童林荟,环糊精化学——基础与应用[M].北京:科学出版社,2001:6-8. |
[2] | HUANG Yi,FAN Xiaodong.Regiosclective Sulfonation of β-Cyclodextrin in an Alkaline Aqueous Solution[J].J NWU (Nat Sci Edn),2003,33(1):41-44(in Chinese).黄怡,范晓东.碱性水溶液中β-环糊精的选择性磺酰化[J].西北大学学报(自然科学版),2003,33(1):41-44. |
[3] | ZHANG Yimin,LIU Chunyang,WANG Xuegong,et al.Progress in Synthesis of 6-OTs-β-Cyclodextrin[J].Chem Ind Eng,2006,23 (6):539-543 (in Chinese).张毅民,刘春阳,王学功,等.6-OTs-β-环糊精的合成工艺进展[J].化学工业与工程,2006,23(6):539-543. |
[4] | LIAO Wenju,ZOU Changjun,LEI Ying.Decreased Adsorption Capacity of CTAB in Montmorillonite by β-Cyclodextrin[J].Chinese J Appl Chem,2008,25(9):1057-1060(in Chinese).廖文菊,邹长军,雷英.β-环糊精降低CTAB在蒙脱土中的吸附过程[J].应用化学,2008,25(9):1057-1060. |
[5] | Melton L D,Slessor K N.Synthesis of Monosubstituted Cyclohexaamyloses[J].Carbohydr Res,1971,18(1):29-37. |
[6] | Matsui Y,Okimoto A.The Binding and Catalytic Properties of a Positively Charged Cycledextrin[J].Bull Chem Soc Jpn,1978,51 (10):3030-3034. |
[7] | Petter R C,Salek J S,Sikorski C T,et al.Cooperative Binding by Aggregated Mono-6-(Alkylamino)-β-Cycledextrins[J].J Am Chem Soc,1990,112(10):3860-3868. |
[8] | Zhong N.An Improved Synthesis of6-O-monotosyl-6-eoxy-β-cycledextrin[J].Tetrahedron Lett,1998,39(19):2919-2920. |
[9] | Coulston R J,Onagi H,Lincoln S F,et al.Harnessing the Energy of Molecular Recognition in a Nanomachine Having a Photochemical On/Off Switch[J].J Am Chem Soc,2006,128(46):14750-14751. |
[10] | LIU Yu,ZHANG Yimin,SUN Shixin,et al.A Convenient and Efficient Method of Tosylation of β-Cyclodextrin in Tetrahydrofuran-Water[J].Chem J Chinese Univ,1995,16(10):1567-1568 (in Chinese).刘育,张毅民,孙世新,等.一种简便、有效的合成6-OTs-β-CD的新方法[J].高等学校化学学报,1995,16(10):1567-1568. |
[11] | SHEN Baojian,TONG Linhui,ZHANG Hongwei,et al.Regioselective Sulfonation of a C-2 Hydroxyl Group of β-Cyclodextrin[J].Chinese J Org Chem,1991,11 (3):265-268 (in Chinese).申宝剑,童林荟,张宏伟,等.β-环糊精2位碳仲羟基的选择性磺酰化[J].有机化学,1991,11 (3):265-268. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%