New chiral amide ligands derived from (±)-irans-1,2-Diaminocyclohexane. Applications in titanium (IV) chemistry

Organometallics

Volumn 16, Issue 7, 1997, Pages 1392-1400

  Tsuie, Barbara ^a   Swenson, Dale C ^a   Jordan, Richard F ^a   Petersen, Jeffrey L ^b  

^a University of Iowa ^*  (United States)

^b WEST VIRGINIA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001661287     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om960939m     Document Type: Article

References (51)

1. (a) Guram, A. S.; Jordan, R. F. In Comprehensive Organometallic Chemistry, 2nd ed.; M. F. Lappert, Ed.; Pergamon: Oxford, U.K., 1995; Vol. 4; pp 589-625.
2. (b) Brintzinger, H. H.; Fischer, D.; Mülhaupt, R.; Rieger, B.; Waymouth, R. M. Angew. Chem., Int. Ed. Engl. 1995, 34, 1143.
3. (c) Cardin, D. J.; Lappert, M. F.; Raston, C. L. Chemistry of Organo-Zirconium and -Hafnium Compounds; Halsted Press: New York, 1986.
4. (a) Canich, J. M. European Patent 420436, 1991.
5. (b) Canich, J. M.; Hlatky, G. G.; Turner, H. W. U.S. Patent 542236, 1990.
6. (c) Stevens, J. C.; Timmers, F. J.; Wilson, D. R.; Schmidt, G. F.; Nickias, P. N.; Rosen, R. K.; Knight, G. W.; Lai, S. European Patent 416815, 1990.
7. (d) Campbell, R. E., Jr. U.S. Patent 5066741, 1991.
8. (e) LaPointe, R. E. European Patent 468651, 1991.
9. (f) Devore, D. D.; Timmers, F. J.; Hasha, D. L.; Rosen, R. K.; Marks, T. J.; Deck, P. A.; Stern, C. L. Organometallics 1995, 14, 3132.
10. (g) du Plooy, K. E.; Moll, U.; Wocadlo, S.; Massa, W.; Okuda, J. Organometallics 1995, 14, 3129.
11. (h) Carpenetti, D. W.; Kloppenburg, L.; Kupec, J. T.; Petersen, J. L. Organometallics 1996, 15, 1572.
12. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
13. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
14. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
15. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
16. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
17. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
18. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
19. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
20. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
21. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
22. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
23. 2 chemistry: (a) Andersen, R. A. Inorg. Chem. 1979, 18, 2928. (b) Andersen, R. A. J. Organomet. Chem. 1980, 192, 189. (c) Planalp, R. P.; Andersen, R. A.; Zalkin, A. Organometallics 1983, 2, 16. (d) Bürger, V. H.; Wiegl, K. Z. Anorg. Allg. Chem. 1973, 398, 257. (e) Bürger, V. H.; Neese, H. J. Z. Anorg. Allg. Chem. 1969, 370, 275. (f) Bürger, V. H.; Kluess, C.; Neese, H. J. Z. Anorg. Allg. Chem. 1971, 387, 198. (g) Minhas, R. K.; Scoles, L.; Wong, S.; Gambarotta, S. Organometallics 1996, 15, 1113. (h) Herrmann, W. A.; Huber, N. W.; Behm, J. Chem. Ber. 1992, 125, 1405. (i) Horton, A. D.; de With, J. J. Chem. Soc., Chem. Commun. 1996, 1375. (j) Canich, J. M.; Turner, H. W. World Patent 92/12162, 1992. (k) Bradley, D. C.; Chisholm, M. H. Acc. Chem. Res. 1976, 9, 273. (l) Shah, S. A. A.; Dorn, H.; Voigt, A.; Roesky, H. W.; Parisini, E.; Schmidt, H. G.; Noltemeyer, M. Organometallics 1996, 15, 3176.
24. Cloke, F. G. N.; Geldbach, T. J.; Hitchcock, P. B.; Love, J. B. J. Organomet. Chem. 1996, 506, 343.
25. (a) Aoyagi, K.; Gantzel, P. K.; Kalai, K.; Tilley, T. D. Organometallics 1996, 15, 923.
26. (b) Scollard, J. D.; McConville, D. H.; Vittal, J. J. Organometallics 1995, 14, 5478.
27. (c) Warren, T. H.; Schrock, R. R.; Davis, W. M. Organometallics 1996, 15, 562.
28. (d) Bol, J. E.; Hessen, B.; Teuben, J. H.; Smeets, W. J. J.; Spek, A. L. Organometallics 1992, 11, 1981.
29. (e) Herrmann, W. A.; Denk, M.; Scherer, W.; Klingan, F. R. J. Organomet. Chem. 1993, 444, C21.
30. (f) Herrmann, W. A.; Denk, M.; Albach, R. W.; Behm, J.; Herdtweck, E. Chem. Ber. 1991, 124, 683.
31. (g) Bürger, V. H.; Beiersdorf, D. Z. Anorg. Allg. Chem. 1979, 459, 111.
32. (h) Bürger, H.; Geschwandtner, W.; Liewald, G. R. J. Organomet. Chem. 1983, 259, 145.
33. (i) Scollard, J. D.; McConville, D. H. J. Am. Chem. Soc. 1996, 118, 10008.
34. (j) Scollard, J. D.; McConville, D. H.; Payne, N. C.; Vittal, J. J. Macromolecules 1996, 29, 5241.
35. (k) Tinkler, S.; Deeth, R. J.; Duncalf, D. J.; McCamley, A. J. Chem. Soc., Chem. Commun. 1996, 2623. For related compounds containing a tridentate bis(amide) amine ligand, see:
36. (l) Horton, A. D.; de With, J.; van der Linden, A. J.; van de Weg, H. Organometallics 1996, 15, 2672.
37. (m) Cloke, F. G. N.; Hitchcock, P. B.; Love, J. B. J. Chem. Soc., Dalton Trans. 1995, 25.
38. (n) Clark, H. C. S.; Cloke, F. G. N.; Hitchcock, P. B.; Love, J. B.; Wainwright, A. P. J. Organomet. Chem. 1995, 501, 333.
39. 4. Due to these symmetry properties, the NMR spectra of both isomers have the same number of resonances.
40. 0 M-R bonds by halogens, see: (a) Labinger, J. A.; Hart, D. W.; Seibert, W. E.; Schwartz, J. J. Am. Chem. Soc. 1975, 97, 3851. (b) Ho, S. C. H.; Straus, D. A.; Grubbs, R. H. J. Am. Chem. Soc. 1984, 106, 1533. (c) Brown-Wensley, K. A.; Buchwald, S. L.; Cannizzo, L.; Clawson, L.; Ho, S. C. H.; Meinhardt, D.; Stille, J. R.; Straus, D.; Grubbs, R. H. Pure Appl. Chem. 1983, 55, 1733.
41. 0 M-R bonds by halogens, see: (a) Labinger, J. A.; Hart, D. W.; Seibert, W. E.; Schwartz, J. J. Am. Chem. Soc. 1975, 97, 3851. (b) Ho, S. C. H.; Straus, D. A.; Grubbs, R. H. J. Am. Chem. Soc. 1984, 106, 1533. (c) Brown-Wensley, K. A.; Buchwald, S. L.; Cannizzo, L.; Clawson, L.; Ho, S. C. H.; Meinhardt, D.; Stille, J. R.; Straus, D.; Grubbs, R. H. Pure Appl. Chem. 1983, 55, 1733.
42. 0 M-R bonds by halogens, see: (a) Labinger, J. A.; Hart, D. W.; Seibert, W. E.; Schwartz, J. J. Am. Chem. Soc. 1975, 97, 3851. (b) Ho, S. C. H.; Straus, D. A.; Grubbs, R. H. J. Am. Chem. Soc. 1984, 106, 1533. (c) Brown-Wensley, K. A.; Buchwald, S. L.; Cannizzo, L.; Clawson, L.; Ho, S. C. H.; Meinhardt, D.; Stille, J. R.; Straus, D.; Grubbs, R. H. Pure Appl. Chem. 1983, 55, 1733.
43. For leading references relating to characterization of metalbenzyl bonding, see refs 1a and 1c and: (a) Crowther, D. J.; Borkowsky, S. L.; Swenson, D.; Meyer, T. Y.; Jordan, R. F. Organometallics 1993, 12, 2897. (b) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (c) Latesky, S. L.; McMullen, A. K.; Niccolai, G. P.; Rothwell, I. P.; Huffman, J. C. Organometallics 1985, 4, 902.
44. For leading references relating to characterization of metalbenzyl bonding, see refs 1a and 1c and: (a) Crowther, D. J.; Borkowsky, S. L.; Swenson, D.; Meyer, T. Y.; Jordan, R. F. Organometallics 1993, 12, 2897. (b) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (c) Latesky, S. L.; McMullen, A. K.; Niccolai, G. P.; Rothwell, I. P.; Huffman, J. C. Organometallics 1985, 4, 902.
45. For leading references relating to characterization of metalbenzyl bonding, see refs 1a and 1c and: (a) Crowther, D. J.; Borkowsky, S. L.; Swenson, D.; Meyer, T. Y.; Jordan, R. F. Organometallics 1993, 12, 2897. (b) Hughes, A. K.; Meetsma, A.; Teuben, J. H. Organometallics 1993, 12, 1936. (c) Latesky, S. L.; McMullen, A. K.; Niccolai, G. P.; Rothwell, I. P.; Huffman, J. C. Organometallics 1985, 4, 902.
46. 2: Clearfield, A.; Warner, D. K.; Saldarriaga-Molina, C. H.; Ropal, R.; Bernai, I. Can. J. Chem. 1975, 53, 1622.
47. 2: Scholz, J.; Rehbaum, F.; Thiele, K. H.; Goddard, R.; Betz, P.; Krüger, C. J. Organomet. Chem. 1993, 443, 93.
48. Zucchini, U.; Albizzati, E.; Giannini, U. J. Organomet. Chem. 1871, 26, 357.
49. The thermal decomposition of 12a,b was not studied in detail. Possible decomposition pathways include metalation of the Si-Me groups to yield metallacyclic products and a-H abstraction to yield Ti methylene species. For related chemistry, see: (a) Simpson, S. J.; Andersen, R. A. Inorg. Chem. 1981, 20, 3627. (b) Scoles, L.; Minhas, R.; Duchateau, R.; Jubb, J.; Gambarotta, S. Organometallics 1994, 13, 4978.
50. The thermal decomposition of 12a,b was not studied in detail. Possible decomposition pathways include metalation of the Si-Me groups to yield metallacyclic products and a-H abstraction to yield Ti methylene species. For related chemistry, see: (a) Simpson, S. J.; Andersen, R. A. Inorg. Chem. 1981, 20, 3627. (b) Scoles, L.; Minhas, R.; Duchateau, R.; Jubb, J.; Gambarotta, S. Organometallics 1994, 13, 4978.
51. SHELXL-93 is a FORTRAN-77 program (Professor G. Sheldrick, Institut für Anorganische Chemie, University of Göttingen, D-37077 Göttingen, Germany) for single-crystal X-ray structural analyses.