1,2,3,5,7-pentaselena-4,6,8-triphosphocane as the revised structure for "3,4,5-triselenoxo-1,2-diselena-3,4,5-triphospholane" determined by X-ray analysis

Chemistry Letters

Volumn , Issue 1, 1998, Pages 17-18

  Yoshifuji, Masaaki ^a   Higeta, Naru ^a   An, De Lie ^a,b   Toyota, Kozo ^a  

^a TOHOKU UNIVERSITY   (Japan)

^b HUNAN UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0032384362     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1998.17     Document Type: Article

References (12)

1. D.-L. An, K. Toyota, M. Yasunami, and M. Yoshifuji, Chem. Lett., 1995, 199.
2. 5: C, 47.17; H, 6.07%.
3. M. Yoshifuji, D.-L. An, K. Toyota, and M. Yasunami, Chem. Lett., 1993, 2069.
4. 5: C, 49.81; H, 6.64%.
5. 1/m, Z = 2, T = 296 K, R = 0.069, Rw = 0.075; 6215 unique reflections with 2θ ≤ 50.0°. Of these, 3101 1 > 3 σ(I). The structure was solved with teXsan crystallographic software package of Molecular Structure Corporation (1985 and 1992). Further details of the crystal structure investigation for 6 are available on request from the Director of the Cambridge Crystallographic Data Centre, 12 Union Road, GB-Cambridge CB2 1EZ (UK).
6. The yields of selenoamides 8 from the reaction of 6 with amides 7a-e in benzene at 90°C were as follows. 8a, 10% (188 h); 8b, 15% (288 h); 8c, 7% (187 h); 8d, 12% (160 h); 8e, 7% (408 h). The yields are based on 7 and the numbers in parentheses are the reaction time.
7. M. Segi, T. Nakajima, S. Suga, S. Murai, I. Ryu, A. Ogawa, and N. Sonoda, J. Am. Chem. Soc., 110, 1976 (1988); Y. Takikawa, H. Watanabe, R. Sasaki, and K. Shimada, Bull. Chem. Soc. Jpn., 67, 876 (1994).
8. M. Segi, T. Nakajima, S. Suga, S. Murai, I. Ryu, A. Ogawa, and N. Sonoda, J. Am. Chem. Soc., 110, 1976 (1988); Y. Takikawa, H. Watanabe, R. Sasaki, and K. Shimada, Bull. Chem. Soc. Jpn., 67, 876 (1994).
9. M. Segi, A. Kojima, T. Nakajima, and S. Suga, Synlett, 1991, 105; M. Segi, T. Takahashi, H. Ichinose, G. M. Li, and T. Nakajima, Tetrahedron Lett., 33, 7865 (1992).
10. M. Segi, A. Kojima, T. Nakajima, and S. Suga, Synlett, 1991, 105; M. Segi, T. Takahashi, H. Ichinose, G. M. Li, and T. Nakajima, Tetrahedron Lett., 33, 7865 (1992).
11. D. H. R. Barton, P.-E. Hansen, and K. Picker, J. Chem. Soc., Perkin 1, 1977, 1723.
12. F. S. Guziec, Jr. and C. A. Moustakis, J. Org. Chem., 49, 189 (1984).