Synthesis and structure of a base-stabilized silyl(silylene)tantalum complex

Chemistry Letters

Volumn 34, Issue 10, 2005, Pages 1412-1413

  Koshikawa, Hidenori ^a   Okazaki, Masaaki ^b   Matsumoto, Shun Ichi ^a   Ueno, Keiji ^c   Tobita, Hiromi ^a   Ogino, Hiroshi ^d  

^a TOHOKU UNIVERSITY   (Japan)

^b KYOTO UNIVERSITY   (Japan)

^c GUNMA UNIVERSITY   (Japan)

^d OPEN UNIVERSITY OF JAPAN   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 29344431925     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2005.1412     Document Type: Article

References (19)

1. a) T. D. Tilley, in "The Silicon-Heteroatom Bond," ed. by S. Patai and Z. Rappoport, Wiley, New York (1991), p 245.
2. b) M. S. Eisen, in "The Chemistry of Organic Silicon Compounds," ed. by Z. Rappoport and Y. Apeloig, Wiley, New York (1998), Vol. 2, Chap. 35, p 2037.
3. a) H. Ogino, Chem. Rec., 2, 291 (2002).
4. b) B. V. Mork and T. D. Tilley, J. Am. Chem. Soc., 126, 4375 (2004), and references cited therein.
5. M. Okazaki, H. Tobita, and H. Ogino, Dalton Trans., 2003, 493.
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7. A. H. Klazinga and J. H. Teuben, J. Organomet. Chem., 165, 31 (1979).
8. 2 in a glovebox. Volatiles were removed under reduced pressure and the residue was extracted with hexane. Cooling of the concentrated extract at -50°C gave a yellow solid of 2. Yield: 477 mg (85%).
9. a) K. Ueno, H. Tobita, M. Shimoi, and H. Ogino, J. Am. Chem. Soc., 110, 4092 (1988).
10. b) K. Ueno, S. Ito, K. Endo, H. Tobita, S. Inomata, and H. Ogino, Organometallics, 13, 3309 (1994).
11. c) H. Tobita, H. Wada, K. Ueno, and H. Ogino, Organometallics, 13, 2545 (1994).
12. d) T. Takeuchi, H. Tobita, and H. Ogino, Organometallics, 10, 835 (1991).
13. e) K. Ueno, A. Masuko, and H. Ogino, Organometallics, 16, 5023 (1997).
14. f) M. Okazaki, H. Tobita, and H. Ogino, Chem. Lett., 1997, 437.
15. 2 in a glovebox. Volatiles were removed under reduced pressure and the residue was extracted with hexane (30 mL). Cooling of the concentrated hexane solution (20 mL) at -50°C gave a yellow solid of 3 (53 mg, 8%). Cooling of the further concentrated mother liquid (10 mL) gave a yellow solid of 4 (35 mg, 7%).
16. Crystallographic data reported in this manuscript have been deposited with Cambridge Crystallographic Data Centre as supplementary publication No. CCDC-279047. Copies of the data can be obtained free of charge via http://www.ccdc. cam.ac.uk/conts/retrieving.html (or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge, CB2 1EZ, UK; fax: +44 1223 336033; or deposit@ccdc.cam.ac.uk).
17. For the rare earth elements, silylene complexes have been reported: a) X. Cai, B. Gerhus, P. B. Hitchcock, and M. F. Lappert, Can. J. Chem., 78, 1484 (2000).
18. b) W. J. Evans, J. M. Perotti, J. W. Ziller, D. F. Moser, and R. West, Organometallics, 22, 1160 (2003).
19. 2 in a glovebox. Evaporation of the solution gave 5 (9 mg) in 90% yield.