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Volumn , Issue 4, 2010, Pages 529-541

Mechanistic studies on the copper-catalyzed hydrosilylation of ketones

Author keywords

Asymmetric catalysis; Copper; Density functional calculations; Hydrosilylation; Mechanistic studies

Indexed keywords

CATALYSIS; COPPER COMPOUNDS; DENSITY FUNCTIONAL THEORY; HYDROSILYLATION; ISOTOPES; REACTION INTERMEDIATES;

EID: 75749092923     PISSN: 14341948     EISSN: 10990682     Source Type: Journal    
DOI: 10.1002/ejic.200900961     Document Type: Article
Times cited : (47)

References (91)
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    • For mechanistic investigations of rhodium-catalyzed hydrosilylation of ketones, see: a
    • For mechanistic investigations of rhodium-catalyzed hydrosilylation of ketones, see: a) I. Ojima, T. Kogure, M. Kumagai, S. Horiuchi, Y. Sato, J. Organomet. Chem, 1976, 122, 83;
    • (1976) J. Organomet. Chem , vol.122 , pp. 83
    • Ojima, I.1    Kogure, T.2    Kumagai, M.3    Horiuchi, S.4    Sato, Y.5
  • 26
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    • For reviews on hydrosilylation of ketones, see
    • For reviews on hydrosilylation of ketones, see: a) J.F. Carpentier, V. Bette, Curr. Org. Chem. 2002, 6, 913;
    • (2002) Curr. Org. Chem. , vol.6 , pp. 913
    • Carpentier, A.J.F.1    Bette, V.2
  • 44
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    • Two different diphosphane ligands were used in this study: 2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl (BINAP) and 2,2-dimethyl-1,3- bis(diphenylphosphanyl)propane DMDP
    • Two different diphosphane ligands were used in this study: 2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl (BINAP) and 2,2-dimethyl-1,3- bis(diphenylphosphanyl)propane (DMDP).
  • 45
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    • Université de Strasbourg
    • F. P. Notter, Ph. D. Thesis, Université de Strasbourg, 2008.
    • (2008)
    • Notter, F.P.1    Thesis, P.D.2
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    • NHC ligands have allowed complete characterization of monomeric gold(I) hydride complexes, see: d) E. Y. Tsui, P. Müller, J. P. Sadighi, Angew. Chem, Int. Ed. 2008, 47, 8937-8940.
    • (2008) Angew. Chem, Int. Ed. , vol.47 , pp. 8937-8940
    • Tsui, E.Y.1    Müller, P.2    Sadighi, J.P.3
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    • 2 as silane: see data in Supporting Information
    • 2 as silane: see data in Supporting Information
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    • We are well aware however that the DFT calculations may not take properly into account weak interactions such as π-π interactions or CH/π interactions. Thus the agreement between theory and experiment may be regarded as fortuitous. Yet the overall consistency of the experimental and theoretical results adds credence to our final conclusions.
    • We are well aware however that the DFT calculations may not take properly into account weak interactions such as π-π interactions or CH/π interactions. Thus the agreement between theory and experiment may be regarded as fortuitous. Yet the overall consistency of the experimental and theoretical results adds credence to our final conclusions.
  • 78
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    • 2 and found that decomposition by thermolysis (at 200°C for 20 min) of the complex could lead to a mixture of benzophenone and diphenylmethanol, see: K. Osakada, T. Takizawa, M. Tanaka, T. Yamamoto, J. Organomet. Chem. 1994, 473, 359.
    • (1994) J. Organomet. Chem. , vol.473 , pp. 359
    • Osakada, K.1    Takizawa, T.2    Tanaka, M.3    Yamamoto, T.4
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    • A catalytic cycle that contains an enantioselectivity determining step different from the rate limiting step was also postulated for the titanium-catalyzed hydrosilylation of ketones. The hypothesis was proposed based on the rate enhancement when alcohol was added to the reaction mixture. Such a positive alcohol effect was also observed in some cases with copper hydride-catalyzed reactions, see references 8 and 10c.
    • A catalytic cycle that contains an enantioselectivity determining step different from the rate limiting step was also postulated for the titanium-catalyzed hydrosilylation of ketones. The hypothesis was proposed based on the rate enhancement when alcohol was added to the reaction mixture. Such a positive alcohol effect was also observed in some cases with copper hydride-catalyzed reactions, see references 8 and 10c.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.