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Volumn 46, Issue 18, 2007, Pages 7394-7402

Transition metal-catalyzed dissociation of phosphine-gallane adducts: Isolation of mechanistic model complexes and heterogeneous catalyst poisoning studies

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EID: 34548624598     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic700573j     Document Type: Article
Times cited : (13)

References (62)
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    • For a recent review on metal-catalyzed dehydrocoupling, see
    • For a recent review on metal-catalyzed dehydrocoupling, see: Clark, T. J.; Lee, K.; Manners, I. Chem. - Eur. J. 2006, 12, 8634.
    • (2006) Chem. - Eur. J , vol.12 , pp. 8634
    • Clark, T.J.1    Lee, K.2    Manners, I.3
  • 7
    • 34548603385 scopus 로고    scopus 로고
    • 3-catalyzed formation of P-B bonds via dehydrocoupling, see: Denis, J.-M.; Forintos, H.; Szelke, H.; Toupet, L.; Pham, T.-N.; Madec, P.-J.; Gaumont, A.-C. Chem. Commun. 2003, 54.
    • 3-catalyzed formation of P-B bonds via dehydrocoupling, see: Denis, J.-M.; Forintos, H.; Szelke, H.; Toupet, L.; Pham, T.-N.; Madec, P.-J.; Gaumont, A.-C. Chem. Commun. 2003, 54.
  • 11
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    • Dresselhaus, M, Crabtree, G, Buchanan M, Eds, Basic Energy Sciences, Office of Science, U.S. Department of Energy: Washington, DC
    • (a) Basic Research Needs for the Hydrogen Economy; Dresselhaus, M., Crabtree, G., Buchanan M., Eds.; Basic Energy Sciences, Office of Science, U.S. Department of Energy: Washington, DC, 2003.
    • (2003) Basic Research Needs for the Hydrogen Economy
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    • 2 activation in the absence of a metal, see: Welch, G. C.; San Juan, R. R.; Masuda, J. D.; Stephan, D. W. Science, 2006, 314, 1124.
    • 2 activation in the absence of a metal, see: Welch, G. C.; San Juan, R. R.; Masuda, J. D.; Stephan, D. W. Science, 2006, 314, 1124.
  • 25
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    • 3 using Rh catalysts and reaction conditions that differ from those used in our group. On the basis of their observations, they propose that the process may be homogeneous: Chen, Y.; Fulton, J. L.; Linehan, J. C.; Autrey, T. J. Am. Chem. Soc. 2005, 127, 3254.
    • 3 using Rh catalysts and reaction conditions that differ from those used in our group. On the basis of their observations, they propose that the process may be homogeneous: Chen, Y.; Fulton, J. L.; Linehan, J. C.; Autrey, T. J. Am. Chem. Soc. 2005, 127, 3254.
  • 28
    • 0035803648 scopus 로고    scopus 로고
    • The thermal dehydrocoupling of P-H and Al/Ga-H bonds has been used to prepare donor-stabilized phosphanyl-alane and phosphanyl-gallane species: Vogel, U, Timoshkin, A. Y, Scheer, M. Angew. Chem, Int. Ed. 2001, 40, 4409
    • The thermal dehydrocoupling of P-H and Al/Ga-H bonds has been used to prepare donor-stabilized phosphanyl-alane and phosphanyl-gallane species: Vogel, U.; Timoshkin, A. Y.; Scheer, M. Angew. Chem., Int. Ed. 2001, 40, 4409.
  • 35
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    • Sheldrick, G. M. SHELXTL-PC, version 5.1; Bruker Analytical X-ray Systems, Inc, Madison, WI, 1997
    • Sheldrick, G. M. SHELXTL-PC, version 5.1; Bruker Analytical X-ray Systems, Inc.: Madison, WI, 1997.
  • 36
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    • The 31P NMR spectroscopic characterization of Cy 2PH·BH3 in CDCl3 (Pδ 19 ppm) has been previously reported, see: Stankevic, M, Pietrusiewicz, K. M, Synthesis 2005, 8, 1279. We independently carried out the synthesis of the compound by treatment of Cy2PH with BH 3·THF in THF and observed, in situ, a multiplet centered at δ -45 in the 11B NMR spectrum d of q; 1JB-P, 47 Hz, 1JB-H, 97 Hz
    • B-H = 97 Hz).
  • 43
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    • Ebsworth, E. A. V, Maddock, A. G, Sharpe, A. G, Eds, Cambridge University Press: Cambridge, U.K
    • Greenwood, N. N. New Pathways in Inorganic Chemistry; Ebsworth, E. A. V., Maddock, A. G., Sharpe, A. G., Eds.; Cambridge University Press: Cambridge, U.K., 1968; p 37.
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    • Greenwood, N.N.1
  • 46
    • 34548604053 scopus 로고    scopus 로고
    • In stoichiometric reactions no evidence for ligand exchange between Cy2PH and Me2NH·BH3, to yield Cy 2PH·BH3, was observed by either 31P or 11B NMR spectroscopy. See ref 24 for spectroscopic details for Cy2PH·BH3
    • 3.
  • 47
    • 34548637784 scopus 로고    scopus 로고
    • 31P NMR spectroscopy has been unsuccessful despite numerous attempts.
    • 31P NMR spectroscopy has been unsuccessful despite numerous attempts.
  • 49
    • 34548656978 scopus 로고    scopus 로고
    • 3, respectively. This indicates that for both adducts, the P-Ga bond is thermodynamically labile. See the Experimental Section for details.
    • 3, respectively. This indicates that for both adducts, the P-Ga bond is thermodynamically labile. See the Experimental Section for details.
  • 50
    • 34548620345 scopus 로고    scopus 로고
    • 11B NMR spectra.
    • 11B NMR spectra.
  • 62
    • 34548612044 scopus 로고    scopus 로고
    • 8] may proceed via routes involving radicals, and this cannot be ruled out at this time.
    • 8] may proceed via routes involving radicals, and this cannot be ruled out at this time.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.