以活性炭固载三氯化钕为非均相催化剂,对环己醇与乙酸酐之间的酰化反应进行了研究,考察了催化剂用量、醇酐摩尔比、反应时间对乙酸环己酯收率的影响.结果表明,活性炭固载三氯化钕有着较好的催化活性,当乙酸酐的加入量为0.1 mol,醇酐摩尔比为1.1∶1时,催化剂质量为0.25g,反应30min后,乙酸环己酯收率可达到92.2%,且催化剂重复使用5次仍保持较高活性,所得产品无色透明,具有很高的纯度.产品经折光率和红外光谱进行了表征.
参考文献
| [1] | 孙婷,吴长增.TiSiW12O40/TiO2催化合成乙酸环己酯[J].合成化学,2003(05):453-454. |
| [2] | 李红缨,杨辉荣.微波辐射对甲苯磺酸催化合成乙酸环己酯[J].精细化工,2002(08):448-449,462. |
| [3] | 王亚军,韩利民,孟佩俊.稀土固体超强酸SO24-/TiO2/Y3+催化合成乙酸环己酯[J].内蒙古工业大学学报(自然科学版),2002(03):181-184. |
| [4] | 李晓莉,辛宏,赵仑,姜雯.氧化钕催化合成丙酸丁酯[J].稀土,2005(02):79-80. |
| [5] | Ranganathan K .Adsorption of Hg(Ⅱ)ions from aqueous chloride solutions using powdered activated carbons[J].CARBON,2003,41:1087-1092. |
| [6] | Lidia Dabek .Sorption of zinc ions from aqueous solutions on regenerated activated carbons[J].Journal of hazardous materials,2003(2):191-201. |
| [7] | M.Adharvana Chari;K.Syamasundar .Polymer(PVP)supported ferric chloride:an efficient and recyclable heterogeneous catalyst for high yield synthesis of 1,5-benzodiazepine derivatives under solvent free conditions and microwave irradiation[J].Catalysis Communications,2005(1):67-70. |
| [8] | C. Ramesh;G. Mahender;N. Ravindranath;Biswanath Das .A simple, mild and efficient procedure for selective cleavage of prenyl esters using silica-supported sodium hydrogen sulphate as a heterogenous catalyst[J].Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry,2003(7):1465-1467. |
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%