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Volumn 26, Issue 21, 2007, Pages 5216-5223

Catalytic hydroarylation of olefins promoted by dicationic platinum(II) and palladium(II) complexes. the interplay of C-C bond formation and M-C bond cleavage

Author keywords

[No Author keywords available]

Indexed keywords

BENZENE; CATALYST ACTIVITY; MOLECULAR STRUCTURE; PALLADIUM COMPOUNDS; PLATINUM COMPOUNDS; PROTONS;

EID: 35349008607     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om700692s     Document Type: Article
Times cited : (36)

References (32)
  • 12
    • 35349019944 scopus 로고    scopus 로고
    • Whether the protonolysis takes place via a concerted three-center mechanism or via a prior oxidative addition to the metal,9 an interaction of the proton with the metal is involved, which is expected to be disfavored by the positive charge on the metal when the complex is cationic. Indeed, while in zwitterionic or neutral alkyl derivatives derived from the nucleophilic attack of amines on platinum-olefin complexes the M-C bond is easily cleaved by HCl,10 reversal of the attack was observed in cationic derivatives.5
    • 5
  • 27
    • 35348993357 scopus 로고    scopus 로고
    • 13C NMR, 3a-5a were isolated (without separation) from two larger scale reactions, run in the presence of different amounts of the aromatic substrate. Using a slight excess of 1,3-dimethoxybenzene 3a, 4a, and 5a were obtained in 47%, 15%, and 38% molar abundances, respectively. A 10-fold excess of me aromatic substrate favored the monosubstituted products, yielding 3a, 4a, and 5a in 85%, 10%, and 5% molar abundances, respectively.
    • 13C NMR, 3a-5a were isolated (without separation) from two larger scale reactions, run in the presence of different amounts of the aromatic substrate. Using a slight excess of 1,3-dimethoxybenzene 3a, 4a, and 5a were obtained in 47%, 15%, and 38% molar abundances, respectively. A 10-fold excess of me aromatic substrate favored the monosubstituted products, yielding 3a, 4a, and 5a in 85%, 10%, and 5% molar abundances, respectively.
  • 28
    • 35348931794 scopus 로고    scopus 로고
    • 4. The solution equilibrated within a few minutes, giving a mixture of 90% 3a, 10% 4a, and only traces of. 5a.
    • 4. The solution equilibrated within a few minutes, giving a mixture of 90% 3a, 10% 4a, and only traces of. 5a.
  • 30
    • 35349018660 scopus 로고    scopus 로고
    • area detector scaling and absorbption correction; Bruker AXS
    • SADABS, area detector scaling and absorbption correction; Bruker AXS, 2002
    • (2002) SADABS
  • 31
    • 35348932353 scopus 로고    scopus 로고
    • Sheldrick, G. M. SHELX97 [Includes SHELXS97, SHELXL97], Programs for Crystal Structure Analysis (Release 97-2); Institut für Anorganische Chemie der Universität: Göttingen, Germany, 1998.
    • Sheldrick, G. M. SHELX97 [Includes SHELXS97, SHELXL97], Programs for Crystal Structure Analysis (Release 97-2); Institut für Anorganische Chemie der Universität: Göttingen, Germany, 1998.
  • 32
    • 0141452964 scopus 로고    scopus 로고
    • Farrugia, L. J. WinGX, Version 1.70.00, An Integrated System of Windows Programs for the Solution, Refinement and Analysis of Singlecrystal X-Ray Diffraction Data. J. Appl. Crystallogr. 1999, 32, 837-838.
    • Farrugia, L. J. WinGX, Version 1.70.00, An Integrated System of Windows Programs for the Solution, Refinement and Analysis of Singlecrystal X-Ray Diffraction Data. J. Appl. Crystallogr. 1999, 32, 837-838.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.