New chiral diphosphines, 2,3-Bis(siloxy)-1,4-bis(diphenylphosphino)butanes, and their cationic Rh(I) complexes: Synthesis and structures

Chemistry Letters

Volumn , Issue 11, 1996, Pages 1007-1008

  Tamao, Kohei ^a   Nakamura, Kazunori ^a   Yamaguchi, Shigehiro ^a   Shiro, Motoo ^b   Saito, Seiki ^c  

^a KYOTO UNIVERSITY   (Japan)

^b RIGAKU CORPORATION   (Japan)

^c OKAYAMA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0030350607     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1996.1007     Document Type: Article

References (17)

1. a) R. Noyori, "Asymmetric Catalysis in Organic Synthesis," Wiley, New York (1994).
2. b) "Catalytic Asymmetric Synthesis," ed by I. Ojima, VCH Publishers, Inc., New York (1993).
3. H. B. Kagan and M. Sasaki, in "The Chemistry of Organo-Phosphorus Compounds," ed by F. R. Hartley, J. Wiley, New York (1990), p. 51.
4. S. Saito, Y. Hirohara, O. Narahara, and T. Moriwake, J. Am. Chem. Soc., 111, 4533 (1989).
5. H. B. Kagan and T. -P. Dang, J. Am. Chem. Soc., 94, 6429 (1972). They also reported the "open (R,R)-D1OP" with OMe groups instead of the ketal.
6. A. Börner, J. Ward, K. Kortus, and H. B. Kagan, Tetrahedron: Asymmetry, 4, 2219 (1993).
7. E. J. Corey, H. Cho, C. Rücker, and D. H. Hua, Tetrahedron Lett., 22, 3455 (1981).
8. 3). mp 118-119 °C (dec).
9. w = 0.082, and S = 1.36; number of unique reflections = 3558.
10. R. R. Schrock and J. A. Osborn, J. Am. Chem. Soc., 93, 2397 (1971).
11. w = 0.047, and S = 1.16; number of unique reflections = 6112.
12. S. Brunie, J. Mazan, N. Langlois, and H. B. Kagan. J. Organomet. Chem., 114, 225 (1976).
13. 2 has been reported: R. G. Ball, B. R. James, D. Mahajan, and J. Trotter, Inorg. Chem., 20, 254 (1981).
14. K. E. Koenig, in "Asymmetric Synthesis," ed by J. D. Morrison, Academic Press, New York (1985), Vol. 5, Chap. 3.
15. 2, 15 °C, 24-32 h. The enantiomeric excess of the product was determined by HPLC using SUMICHIRAL OA-3000 (hexane/1,2-dichlorocthane/EtOH = 100/20/1).
16. Benzene was used as a solvent: D. Sinou and H. B. Kagan, J. Organomet. Chem., 114, 325 (1976).
17. K. Tamao, K. Nakamura, H. Ishii, S. Yamaguchi, and M. Shiro, submitted for publication.