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Volumn 47, Issue 51, 2008, Pages 9941-9943

C-H bond activation by [{(Diimine)Pd(μ-OH)}2]2+ dimers: Mechanism-guided catalytic improvement

Author keywords

C H activation; Homogeneous catalysis; Kinetics; Oxidation; Palladium

Indexed keywords

ACTIVATION ANALYSIS; CHEMICAL BONDS; CHEMICAL REACTIONS; ETHANOL; OLIGOMERS; PALLADIUM; PLATINUM; PLATINUM COMPOUNDS; REACTION KINETICS;

EID: 57549117830     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200804455     Document Type: Article
Times cited : (47)

References (16)
  • 9
    • 57549117081 scopus 로고    scopus 로고
    • 3-cyclohexenyl species is initially formed, but is unstable and decomposes to give palladium(0) and organic by-products, such as 1,3-cyclohexadiene.
    • 3-cyclohexenyl species is initially formed, but is unstable and decomposes to give palladium(0) and organic by-products, such as 1,3-cyclohexadiene.
  • 10
    • 57549099434 scopus 로고    scopus 로고
    • To exclude the possibility that the difference in behavior is due to changing the organic substrate rather than the metal, some kinetic studies were carried out for the reaction of, diiminePt-(μ-OH, 2]2, 1a) and indene in the presence of acid, 7] The mechanism of C-H activation appears to be completely the same as that for reactions between 1a and cyclohexene.[3, 7] Experimental details and more extensive discussion are provided in the Supporting Information
    • [3] [7] Experimental details and more extensive discussion are provided in the Supporting Information.
  • 13
    • 33646075953 scopus 로고    scopus 로고
    • Consistent with this proposal it has been demonstrated that reaction of 1a with PEt3 results in the formation of, diiminePt(OH, PEt3, Similarly, reaction of 1b with MeCN or DMSO results in the formation of new complexes which contain resonances in the 1H NMR spectrum consistent with species of the type, diimine)Pd(OH)(MeCN, or, diimine)Pd(OH)(dmso, respectively; both of these Pd species activate indene to form 4b (see the Supporting Information for more details, Furthermore, half-order dependence on Pd concentration has been detected in the, neocuproine)Pd(OAc) 2]-catalyzed aerobic oxidation of alcohols, for which a hydroxy-bridged dimeric palladium complex was proposed to be the active species. See I. W. C. E. Arends, G. ten Brink, R. A. Sheldon, J. Mol. Catal. A: Chem. 2006, 251, 246
    • 2]-catalyzed aerobic oxidation of alcohols, for which a hydroxy-bridged dimeric palladium complex was proposed to be the active species. See I. W. C. E. Arends, G. ten Brink, R. A. Sheldon, J. Mol. Catal. A: Chem. 2006, 251, 246.
  • 14
    • 33846630870 scopus 로고    scopus 로고
    • For a discussion on the effect of charge in C-H activation by dicationic platinum(II) complexes see: T. G. Driver, T. J. Williams, J. A. Labinger, J. E. Bercaw, Organometallics 2007, 26, 294.
    • For a discussion on the effect of charge in C-H activation by dicationic platinum(II) complexes see: T. G. Driver, T. J. Williams, J. A. Labinger, J. E. Bercaw, Organometallics 2007, 26, 294.
  • 15
    • 0041375739 scopus 로고
    • For the synthesis of 1,1,3-trideuteroindene, see
    • For the synthesis of 1,1,3-trideuteroindene, see M. Yasuda, C. Pak, H. Sakurai, Bull. Chem. Soc. Jpn. 1980, 53, 502.
    • (1980) Bull. Chem. Soc. Jpn , vol.53 , pp. 502
    • Yasuda, M.1    Pak, C.2    Sakurai, H.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.