Synthesis and pseudorotational barriers of hypervalent antimony compounds bearing antimony-group 6 transition metal bonds

Chemistry Letters

Volumn , Issue 8, 1999, Pages 783-784

  Toyota, Koichiro ^a   Yamamoto, Yohsuke ^a   Akiba, Kin Ya ^a  

^a HIROSHIMA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033245556     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1999.783     Document Type: Article

References (18)

1. R. R. Holmes, "Pentacoordinate Phosphorus", ACS Monograph Series 175 and 176, American Chemical Society, Washington DC (1980), Vols, 1 and 2.
2. a) S. Kojima, K. Kajiyama, and K.-y. Akiba, Bull. Chem. Soc. Jpn., 68, 1785 (1995).
3. b) S. Kojima, K. Kajiyama, and K.-y. Akiba, Tetrahedron Lett., 35, 7037 (1994).
4. For recent examples of hypervalent group 15 element-transition metal bond: a) H. Nakazawa, K. Kubo, and K. Miyoshi, J. Am. Chem. Soc., 115, 5863 (1993).
5. b) S. K. Chopra and J. C. Martin, Heteroatom Chem., 2, 71 (1991).
6. c) C. D. Montgomery, Phosphorus, Sulfur, and Silicon, 84, 23 (1993).
7. d) W. Malisch and P. Panster, Angew. Chem., Int. Ed. Engl., 13, 670 (1982).
8. e) D. V. Khasnis, M. Lattman, and U. Siriwardane, Organometallics, 10, 1326 (1991).
9. f) F. Jeanneaux, A. Grand, and J. G. Riess, J. Am. Chem. Soc., 103, 4272 (1981).
10. Y. Yamamoto, M. Okazaki, Y. Wakisaka, and K.-y. Akiba, Organometallics, 14, 3364 (1995).
11. J. Markham, K. Menard, and A. Culter, Inorg. Chem., 24, 1581 (1985).
12. 2-n-hexane (1 : 1)]. Compounds 1 and 3 were obtained by similar procedures.
13. 3): δ 5.71 (s, 5 H), 7.52 (t, 2H), 7.61 (t, 2 H), 7.70 (d, 2 H), 8.15 (d, 2 H). Elemental analysis of 1 ∼ 4 gave correct results.
14. a) S. Kojima, Y. Doi, M. Okuda, and K.-y. Akiba, Organometallics, 14, 1928 (1995).
15. b) K.-y. Akiba, H. Nakata, Y. Yamamoto, and S. Kojima, Chem. Lett., 1992, 1559.
16. 3): 4a; δ 1.49 (s, 3H), 5.63 (s, 5 H), 7.4-7.5 (m, 4H), 7.57 (t, 1H), 7.69 (d, 1 H), 8.11 (d, 1 H), 8.21 (d, 1 H). 4b; δ 1.72 (s, 3H), 5.62 (s, 5 H), 7.5-7.6 (m, 5H), 7.71 (d, 1H), 8.10 (d, 1 H), 8.14 (d, 1 H).
17. 3 side) 2.100(3), Sb-C(eq) 2.121(4), Sb-C(eq) 2.111(4), Sb-Mo 2.764(1). Selected bond angles (deg): O(ax)-Sb-O(ax) 164.1(2), C(eq)-Sb-C(eq) 109.9(2), C(eq)-Sb-Mo 124.6(1), C(eq)-Sb-Mo 125.3(1).
18. S. Kojima, R. Takagi, H. Nakata, Y. Yamamoto, and K.-y. Akiba, Chem. Lett., 1995, 857.