A spectroscopic study on the 12-heteropolyacids of molybdenum and tungsten (h3pmo12-nwno40) combined with cetylpyridinium bromide in the epoxidation of cyclopentene
文献类型：期刊论文
| 作者 | Ding, Y; Ma, BC; Gao, Q; Li, GX; Yan, L; Suo, JS |
| 刊名 | Journal of molecular catalysis a-chemical
 |
| 出版日期 | 2005-04-06 |
| 卷号 | 230期号:1-2页码:121-128 |
| 关键词 | Molybdotungstophosphoric acids Cyclopentene Hydrogen peroxide Pmw/cpb Pw12/cpb |
| ISSN号 | 1381-1169 |
| DOI | 10.1016/j.molcata.2004.12.017 |
| 通讯作者 | Suo, js() |
| 英文摘要 | The epoxidation of cyclopentene with hydrogen peroxide catalyzed by 12-heteropolyacids of molybdenum and tungsten (h(3)pmo(12-n)wno(40), n = 1-11) 12-tunastophosphoric acid and 12-molybdophosphoric acid combined with cetylpyridinium bromide as a phase transfer reagent was carried out in acetonitrile. among 13 heteropolyacids investigated, catalyst of h3pmo6w6o40 showed the highest activity, giving a conversion of 60% and a selectivity of 95% in the epoxidation of cyclopentene. the fresh catalysts and the catalysts under reaction condition were characterized by uv-vis, ft-ir and p-31 nmr spectroscopy, which has revealed that all of the molybdotungstophosphoric acids were degraded in the presence of hydrogen peroxide to form a considerable amount of phosphorus-containing species. the active species resulted from h3pmo6w6o40 are new kinds of phosphorus-containing species, which is different from po4[wo(o-2)(2)](4)(3-). (c) 2004 elsevier b.v. all rights reserved. |
| WOS关键词 | PHASE-TRANSFER CONDITIONS ; HYDROGEN-PEROXIDE ; SELECTIVE EPOXIDATION ; HETEROPOLY COMPOUNDS ; ALLYLIC ALCOHOLS ; BIPHASE MEDIUM ; CATALYST ; OLEFINS ; POLYOXOMETALATE ; CYCLOHEXENE |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000227845200017 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377143 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Suo, JS |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Grad Sch, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Chengdu Organ Chem Co Ltd, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Y,Ma, BC,Gao, Q,et al. A spectroscopic study on the 12-heteropolyacids of molybdenum and tungsten (h3pmo12-nwno40) combined with cetylpyridinium bromide in the epoxidation of cyclopentene[J]. Journal of molecular catalysis a-chemical,2005,230(1-2):121-128. |
| APA | Ding, Y,Ma, BC,Gao, Q,Li, GX,Yan, L,&Suo, JS.(2005).A spectroscopic study on the 12-heteropolyacids of molybdenum and tungsten (h3pmo12-nwno40) combined with cetylpyridinium bromide in the epoxidation of cyclopentene.Journal of molecular catalysis a-chemical,230(1-2),121-128. |
| MLA | Ding, Y,et al."A spectroscopic study on the 12-heteropolyacids of molybdenum and tungsten (h3pmo12-nwno40) combined with cetylpyridinium bromide in the epoxidation of cyclopentene".Journal of molecular catalysis a-chemical 230.1-2(2005):121-128. |
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