Secondary alcohols oxidation with hydrogen peroxide catalyzed by [n-C16H33N(CH3)(3)](3)PW12O40: Transform-and-retransform process between catalytic precursor and catalytic activity species
文献类型:期刊论文
作者 | Zhang, Shengjun1,2; Zhao, Gongda1; Gao, Shuang1; Xi, Zuwei1; Xu, Jie1 |
刊名 | journal of molecular catalysis a-chemical
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出版日期 | 2008-06-17 |
卷号 | 289期号:1-2页码:22-27 |
关键词 | alcohols H2O2 oxidation polyoxonnetalates |
英文摘要 | [n-c16h33 n(ch3)(3)](3) pw12o40 (1a) catalyzed the oxidation of secondary alcohols with 27.5% aqueous hydrogen peroxide under solvent-free conditions. the isolated yields of all ketones were higher than 92%. the turnover number of the catalyst la was above 368, and the highest ton and tof were up to 3840 and 320 h(-1). in this catalytic system, the catalytic active species was {po4[wo(o-2)(2)](4)}(3-), which was formed from la in the reaction. it was discovered that {po4[wo(o-2)(2)](4)}(3-) (pw4) and [pw12o40](3-) (pw12) kept an equilibrium during the alcohol oxidation by simultaneous monitoring. the distribution of species in organic and aqueous phases. the analysis of the w content in the aqueous phase by icp and the detection of the species transformation in the organic phase by p-31 nmr revealed that the most of the pw4 species were transformed to the pw12 species again after the reaction. pw12 and pw4 were in the transform-and-retransform process. (c) 2008 elsevier b.v. all rights reserved. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | chemistry, physical |
研究领域[WOS] | chemistry |
关键词[WOS] | aerobic oxidation ; green chemistry ; recyclable catalyst ; biphase medium ; atom economy ; ionic liquid ; epoxidation ; efficient ; polyoxometalate ; complexes |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000257897800004 |
公开日期 | 2015-11-17 |
源URL | [http://159.226.238.44/handle/321008/141222] ![]() |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Shengjun,Zhao, Gongda,Gao, Shuang,et al. Secondary alcohols oxidation with hydrogen peroxide catalyzed by [n-C16H33N(CH3)(3)](3)PW12O40: Transform-and-retransform process between catalytic precursor and catalytic activity species[J]. journal of molecular catalysis a-chemical,2008,289(1-2):22-27. |
APA | Zhang, Shengjun,Zhao, Gongda,Gao, Shuang,Xi, Zuwei,&Xu, Jie.(2008).Secondary alcohols oxidation with hydrogen peroxide catalyzed by [n-C16H33N(CH3)(3)](3)PW12O40: Transform-and-retransform process between catalytic precursor and catalytic activity species.journal of molecular catalysis a-chemical,289(1-2),22-27. |
MLA | Zhang, Shengjun,et al."Secondary alcohols oxidation with hydrogen peroxide catalyzed by [n-C16H33N(CH3)(3)](3)PW12O40: Transform-and-retransform process between catalytic precursor and catalytic activity species".journal of molecular catalysis a-chemical 289.1-2(2008):22-27. |
入库方式: OAI收割
来源:大连化学物理研究所
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