Implications of Three-Center, Two-Electron M-H-C Bonding for Related Alkyl Migration Reactions: Design and Study of an Ethylene Polymerization Catalyst

Journal of the American Chemical Society

Volumn 107, Issue 5, 1985, Pages 1443-1444

  Schmidt, Gregory F ^a   Brookhart, Maurice ^a  

^a UNIVERSITY OF NORTH CAROLINA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33845377615     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja00291a073     Document Type: Article

References (11)

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3. (a) Lamanna, W.; Brookhart, M. J. Am. Chem. Soc. 1981, 103, 989. (b) Brookhart, M.; Lamanna, W.; Humphrey, M. B. J. Am. Chem. Soc. 1982, 104, 2117. (c) Schultz, A. J.; Teller, R. G.; Bend, M. A.; Williams, J. M.; Brookhart, M.; Lamanna, W.; Humphrey, M. B. Science (Washington, D.C.) 1983, 220, 197. (d) Brookhart, M.; Lamanna, W.; Pinhas, A. R. Organomet metallics 1983, 2, 638. (e) For a reinterpretation of several previously reported terminal hydride structures, see: Lamanna, W. M. Ph.D. Dissertation, University of North Carolina, Chapel Hill, NC, 1981.
4. Brookhart, M.; Green, M. L. H.; Pardy, R. B. A. J. Chem. Soc., Chem. Commun. 1983, 691.
5. 3) are reported to polymerize ethylene.
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7. (a) Ivin, K. J.; Rooney, J. J.; Stewart, C. D.; Green, M. L. H.; Mahtab, R. J. Chem. Soc., Chem. Commun. 1978, 604. (b) See also: Turner, H. W.; Schrock, R. R. J. Am. Chem. Soc. 1982, 104, 2331. (8) For a concise summary, see: Soto, J.; Steigerwald, M. L.; Grubbs, R. H. J. Am. Chem. Soc. 1982, 104, 4479.
8. (a) Tebbe, F. N.; Parshall, G. W. J. Am. Chem. Soc. 1971, 93, 3793. (b) Green, M. L. H. Pure Appl. Chem. 1978, 50, 21. (c) Cooper, N. J.; Green, M. L. H. J. Chem. Soc., Chem. Commun. 1974, 761. (d) Green, M. L. H.; Mahtab, R. J. Chem. Soc. Dalton Trans. 1979, 262. (e) Schrock, R. R.; Sharp, P. R. J. Am. Chem. Soc. 1978, 100, 2389. (f) Werner, H.; Feser, R. Angew. Chem., Int. Ed. Engl. 1979, 18, 157. (g) Werner, H.; Werner, R. J. Organomet. Chem. 1979, 174, C63. (h) Klein, H.-F,; Hammer, R.; Gross, J.; Schubert, U. Angew. Chem., Int. Ed. Engl. 1980, 809. (i) Lehmkuhl; H. Naydowski, C.; Benn, R.; Rufinska, A.; Schroth, G. J. Organomet. Chem. 1982, 228, Cl.
9. (a) For a case where migratory insertion is proposed but the intermediate ethylene alkyl is not observed, see: Evitt, E. R.; Bergman, R. G. J. Am. Chem. Soc. 1980, 102, 7003. (b) Stepwise insertions of alkenes into alkyl lanthanide bonds have been studied: Watson, P. L. J. Am. Chem. Soc. 1982, 104, 337. (c) Note Added in Proof: Alkene insertion into a chelated platinum-alkyl bond has been reported: Flood, T. C.; Bitler, S. P. J. Am. Chem. Soc. 1984, 106, 6076.
10. (a) Klazinga, A.; Teuben, J. H. J. Organomet. Chem. 1979, 165, 31. (b) Klazinga, A.; Teuben, J. H. J. Organomet. Chem. 1980, 192, 75. (c) Sharp, P. R.; Schrock, R. R. J. Organomet. Chem. 1979, 171, 43. (d) McGrady, N. D.; McDade, C.; Bercaw, J. E. In “Organometallic Compounds”; Shapiro, B. L.; Ed.; Texas A&M University Press: College Station, TX, 1983. (e) Benfield, F. W. S.; Green, M. L. H. J. Chem. Soc., Dalton Trans. 1979, 1324. (f) For calculations on insertion reactions, see: Thorn, D. L.; Hoffmann, R. J. Am. Chem. Soc. 1978, 100, 2079.
11. 4): Beevor, R. G.; Frith, S. A.; Spencer, J. L. J. Organomet. Chem. 1978, 221, C25.