Model Ziegler-Natta α-Olefin Polymerization Catalysts Derived from [{(η5-C5Me4)SiMe2(η1-NCMe3)KPMe3)Sc(μ2-H)]2 and [{(η5-C5Me4)SiMe2(η1-NCMe3)}Sc(M2-CH2CH2CH3)]2. Synthesis, Structures, and Kinetic and Equilibrium Investigations of the Catalytically Active Species in Solution

Journal of the American Chemical Society

Volumn 116, Issue 11, 1994, Pages 4623-4640

  Shapiro, Pamela J ^a   Cotter, W Donald ^a   Schaefer, William P ^a   Labinger, Jay A ^a   Bercaw, John E ^a  

^a CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000748027     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja00090a011     Document Type: Article

References (62)

1. Brookhart, M.; Volpe, A. F., Jr.; Lincoln, D. M.; Horvath, I. T.; Millar, J. M. J. Am. Chem. Soc. 1990, 112, 5634.
2. Jordan, R. F.; LaPointe, R. E.; Bradley, P. K.; Baenziger, N. Organometallics 1989, 111, 2728.
3. Burger, B. J.; Thompson, M. E.; Cotter, W. D.; Bercaw, J. E. J. Am. Chem. Soc. 1990, 112, 1566.
4. Shapiro, P. J.; Bunel, E. E.; Schaefer, W. P.; Bercaw, J. E. Organometallics 1990, 9, 867.
5. Piers, W. E.; Shapiro, P. J.; Bunel, E. E.; Bercaw, J. E. Synlett 1990, 74.
6. Eshuis, J. J. W.; Tan, Y. Y.; Teuben, J. H.; Renkema, J. J. Mol. Catal. 1990, 62, 277.
7. Eshuis, J. J. W.; Tan, Y. Y.; Meetsma, A.; Teuben, J. H.; Renkema, J.; Evens, G. G. Organometallics 1992, 11, 362.
8. Watson, P. L. J. Am. Chem. Soc. 1982, 104, 337.
9. Jeske, G.; Lauke, H.; Mauermann, H.; Sweptson, P. N.; Schumann, H.; Marks, T. J. J. Am. Chem. Soc. 1985, 107, 8091.
10. Hlatky, G. G.; Turner, H. W.; Eckman, R. R. J. Am. Chem. Soc. 1989, 111, 2728.
11. Turner, H. W. European Patent Application 277004, 1988.
12. Chien, J. C. W.; Tsai, W.-M.; Rausch, M. D. J. Am. Chem. Soc. 1991, 113, 8570.
13. Yang, X.; Stern, C. L.; Marks, T. J. J. Am. Chem. Soc. 1991, 113, 3623.
14. Kaminsky, W.; Kulper, K.; Brintzinger, H. H.; Wild, F. R. W. P. Angew. Chem. 1985, 97, 507; Angew. Chem., Int. Ed. Engl. 1985, 24, 507.
15. Ewen, J. A.; Jones, R. L.; Razavi, A.; Ferrara, J. D. J. Am. Chem. Soc. 1988, 110, 6255.
16. Ewen, J. A. J. Am. Chem. Soc. 1984, 106, 6355.
17. Erker, G.; Nolte, R.; Tsay, Y.-H.; Krflger, C. Angew. Chem., Int. Ed. Engl. 1989, 29, 629.
18. Mallin, D. T.; Rausch, M. D.; Lin, Y.-G.; Dong, S.; Chien, J. C. W. J. Am. Chem. Soc. 1990.
19. Resconi, L.; Waymouth, R. M. J. Am. Chem. Soc. 1990, 112, 4953.
20. Piers, W. E.; Bercaw, J. E. J. Am. Chem. Soc. 1990, 112, 9406.
21. Krauledat; Brintzinger, H. H. Angew. Chem., Int. Ed. Engl. 1990, 29, 1412.
22. Laverty, D.; Rooney, J. J. J. Chem. Soc., Farady Trans. 1973, 79, 869.
23. Brookhart, M.; Green, M. L. H. J. Organomet. Chem. 1983, 250, 395.
24. Brookhart, M.; Green, M. L. H.; Wong, L. Prog. Inorg. Chem. 1988, 36, 1.
25. Clawson, L.; Soto, J.; Buchwald, S. L.; Steigerwald, M. L.; Grubbs, R. H. J. Am. Chem. Soc. 1985, 107, 3377.
26. There has been some recent interest in the application of this ligand system to Ti-, Zr-, and Hf-based catalysts for ethylene/1-alkene co-polymerizations; see, for example: Canich, J. M. Eur. Patent 420 436, 1991; Canich, J. M.; HIatky, G. G.; Turner, H. W. U.S. Patent 542 236, 1990; Stevens, J. C.; Timmers, F. J.; Wilson, D. R.; Schmidt, G. F.; Nickias, P. N.; Rosen, R. K.; Knight, G. W.; Lai, S. Eur. Patent 416 815, 1990.
27. Very recently a related but unlinked ligand system has been employed with yttrium to achieve olefin polymerizations: Schaverien, C. J. Organometallics 1994, 13, 69.
28. Schaefer, W. P.; Cotter, W. D.; Bercaw, J. E. Acta Crystallogr., Sect. C 1993, 49, 1489.
29. Shapiro, P. J.; Bunel, E. E.; Schaefer, W. P.; Bercaw, J. E. Organometallics 1990, 9, 867-869.
30. Jordan, R. F.; Bajgur, C. S.; Dasher, W. E. Organometallics 1987, 6, 1041.
31. Kaminsky, W.; Sinn, H. Liebigs Ann. Chem. 1975, 424, 438.
32. Kaminsky, W.; Kopf, J.; Sinn, H.; Vollmer, H. J. Angew. Chem., Int. Ed. Engl. 1976, 15, 629.
33. Wengrovius, J. H.; Schrock, R. R.; Day, C. S. Inorg. Chem. 1981, 20, 1844.
34. Cotton, F. A.; Kibula, P. A. Polyhedron 1987, 6, 645.
35. Cotton, F. A.; Kibula, P. A. Inorg. Chem. 1990, 29, 3192.
36. For other examples of compounds with this type of bridging, 5-coordinate carbon center see: (a) Holton, J.; Lappert, M. F.; Pearce, R.; Yarrow, P. I. Chem. Rev. 1983, 83, 135.
37. Watson, P. L.; Parshall, G. W. Acc. Chem. Res. 1985, 75, 51.
38. Waymouth, R. M.; Santarsiero, B. D.; Coots, R. J.; Bronikowski, M. J.; Grubbs, R. H. J. Am. Chem. Soc. 1986, 108, 1427.
39. Evans, W. J.; Meadows, J. H.; Wayda, A. L.; Hunter, W. E.; Atwood, J. L. J. Am. Chem. Soc. 1982, 104, 2008.
40. Holton, J.; Lappert, M. F.; Ballard, D. G. H.; Pearce, R.; Atwood, J. L.; Hunter, W. E. J. Chem. Soc, Dalton Trans. 1979, 54.
41. Anderson, G. A.; Almenningen, A.; Forgaard, F. R.; Haaland, A. J. Chem. Soc, Chem. Commun. 1971, 480.
42. Huffman, J. C.; Streib, W. E. J. Chem. Soc, Chem. Commun. 1971, 911.
43. Burger, B. J. Ph. D. Thesis, California Institute of Technology, 1987.
44. Nelson, J. E.; Bercaw, J. E.; Labinger, J. A. Organometallics 1989, 8, 2484.
45. Bunel, E. E.; Burger, B. J.; Bercaw, J. E. J. Am. Chem. Soc. 1988, 110, 976.
46. Piers, W. E.; Shapiro, P. J.; Bunel, E. E.; Bercaw, J. E. Synlett 1990, 74.
47. Eshuis, J. J. W.; Tan, Y. Y.; Meetsma, A.; Teuben, J. H.; Renkema, J.; Evens, G. G. Organometallics 1992, 11, 362.
48. Resconi, L.; Piemontesi, F.; Franciscono, G.; Abis, L.; Fiorani, T. J. Am. Chem. Soc. 1992, 114, 1025.
49. Hajela, S.; Bercaw, J. E. Organometallics, in press.
50. Burger, B. J.; Thompson, M. E.; Cotter, W. D.; Bercaw, J. E. J. Am. Chem. Soc. 1990, 112, 1566.
51. Jordan, R. F. Adv. Organomet. Chem. 1991, 32, 325.
52. Similar chemistry is observed for THF adducts of zirconocene cations. Jordan, R. F.; Bajgur, C. S.; Willett, R.; Scott, B. J. Am. Chem. Soc. 1986, 108, 7410.
53. Coughlin, E. B.; Bercaw, J. E. J. Am. Chem. Soc. 1992, 114, 7606.
54. Burger, B. J.; Bercaw, J. E. In Experimental Organometallic Chemistry; Wayda, A. L., Darensbourg, M. Y., Eds.; ACS Symp. Ser. No. 357; American Chemical Society: Washington, DC, 1987; pp 79-98.
55. Wolfsberger, W.; Schmidbaur, H. Synth. React. Inorg. Met.-Org. Chem. 1974, 4, 149-156.
56. Sharp, P. R. Organometallics 1984, 3, 1217-1223.
57. Gibson, V. C.; Graimann, C. E.; Hare, P. M.; Green, M. L. H.; Bandy, J. A.; Grebnik, P. K.; Prout, K. J. Chem. Soc, Dalton Trans. 1985, 2025-2035.
58. Manzer, L. E. Inorg. Syn. 1982, 21, 135.
59. Bunel, E. Ph.D. Thesis, California Institute of Technology, 1988.
60. Cowley, A. H.; Kemp, R. A. Synth. React. Inorg. Met. - Org. Chem. 1981, 11 (6), 591.
61. Davidson, P. J.; Harris, D. H.; Lappert, M. F. J. Chem. Soc, Dalton Trans. 1976, 2268.
62. International Tables for X-ray Crystallography; Kynoch Press: Birmingham, 1974; Vol. IV, pp 71 and 149.