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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
Zhang, Shengjun1,2; Zhao, Gongda1; Gao, Shuang1; Xi, Zuwei1; Xu, Jie1
关键词Alcohols H2o2 Oxidation Polyoxonnetalates
刊名JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
2008-06-17
DOI10.1016/j.molcata.2008.04.004
289期:1-2页:22-27
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000257897800004
引用统计
被引频次:75[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141222
专题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
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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.
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