Organometallic chemistry of an amidate-bridged dinuclear Pt(III) complex: Axial Pt(III)-alkyl σ-bond formation in the reaction with acetone

Journal of the American Chemical Society

Volumn 118, Issue 37, 1996, Pages 8959-8960

  Matsumoto, Kazuko ^a   Matsunami, Jun ^a   Mizuno, Kazuhiro ^a   Uemura, Hiroyuki ^a  

^a WASEDA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

METAL COMPLEX;

ARTICLE; COMPLEX FORMATION; NUCLEAR MAGNETIC RESONANCE; REACTION ANALYSIS;

EID: 0029788865     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja961151y     Document Type: Article

References (26)

1. Barton, J. K.; Rabinowitz, H. N.; Szalda, D. J.; Lippard, S. J. J. Am. Chan. Soc. 1977, 99, 2827.
2. Hollis, L. S.; Lippard. S. J. J. Am. Chem. Soc. 1981, 103, 1230.
3. Hollis, L. S.; Lippard, S. J. J. Am. Chem. Soc. 1983, 105, 3494.
4. Matsumoto, K.; Miyamae, H.; Moriyama, H. Inorg.Chem. 1989, 28, 2959.
5. O'Halloran, T. V.; Mascharak, P. K.; Williams, I. D.; Roberts, M. M.; Lippard, S. J. Inorg. Chem. 1987, 26, 1261.
6. Matsumoto, K.; Fuwa, K. J. Am. Chem. Soc. 1982, 104, 897.
7. Lippert, B.; Neugebauer, D.; Schubert, U. Inorg. Chim. Acta 1980, 46, L11
8. Hollis, L. S.; Lippard, S. J. J. Am. Chem. Soc. 1981, 103, 6761.
9. Matsumoto, K.; Mizuno, K.; Abe, T.; Kinoshita, J.; Shimura, H. Chem. Lett. 1994, 1325.
10. 4): C, 14.76: H, 3.96; N, 14.63. Found: C, 14.76; H, 3.95; N, 14.29. The yields were 52%, and less than 109r, 16%, and 18% for 1a, 1b, 2a, and 2b, respectively.
11. The structure of 3 has been confirmed by X-ray crystallography. The data are deposited as supporting information.
12. u = 0.0604.
13. Che, C. M.; Mak, T. C. W.; Gray, H. B. Inorg. Chem. 1984, 23, 4386.
14. Schöllhom, H.; Thewalt, U.; Lippert, B. J. Chem. Soc. Chem., Commun. 1986, 258.
15. Yamaguchi, T.; Susaki, Y.; Ito, T. J. Am. Chem. Soc. 1990, 112, 4038.
16. Abe, T.; Moriyama, H.; Matsumoto, K. Inorg. Chem. 1991, 30, 4198.
17. Hollis, L. S.: Lippard, S. J. Inorg. Chem. 1983, 22, 2605.
18. O'Halloran, T. V.; Lippard, S. J. J. Am. Chem. Soc. 1983, 105, 3341.
19. The isolated compound 1 seems to contain both isomers. In spite of our intensive effort, the crystal structure of what seems to be the HT isomer could not be solved with a reliable precision, because of the disorder of the amidate ligand.
20. Luinstra, G. A.; Wang, L.; Stahl, S. S.; Labinger, J. A.; Bercaw, J. E. J. Organomet. Chem. 1995, 504, 75.
21. Labinger, J. A.; Herring, A. M.; Lyon, D. K.; Luinstra, G. A.; Bercaw, J. E. Organometallics 1993, 12, 895.
22. 1H NMR chemical shifts (ppm) of the products: 1.067 (Me of pivalamidate in the Pt(II) dimer), 2.16 (Me of hydroxyacetone), 4.37 (methylene of hydroxyacetone).
23. 1H NMR chemical shifts (ppm) of the products: 1.067 (Me of pivalamidate in the Pt(II) dimer), 2.32 (Me of bromoacetone), 4.31 (methylene of bromoacetone).
24. Hillis, J.; Francis, J.; Ori, M.; Tsutsui, M. J. Am. Chem. Soc., 1974, 96, 4800.
25. 1H NMR spectrum of 4 (2.2-2.4 (m, H4), 2.8-3.0.(m, H3), 3.7-3.8 (m, H5) ppm) decreased, and new signals of 5 appeared at 2.19 (quintet, H4), 2.77 (t, H3), 3.73 (t, H5), 2.25 (s, Me of acetonate), and 5.02 (s, methylene of acetonate) ppm.
26. Crabtree, R. H. In The Organometallic Chemistry of the Transition Metals, 2nd ed.; Wiley: New York, 1994; p 169.