Halogenated biphenyl-2,2'-diylbisdiphenylphosphines, their prepa

Details Halogenated biphenyl-2,2'-diylbisdiphenylphosphines, their prepa Halogenated biphenyl-2,2'-diylbisdiphenylphosphines, their prepa

1995-06-28

1997-04-15

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 21, 556136, 568 17, C07F 902, C07F 1500

Patent

active

056211287

ABSTRACT:
Compounds of the formula I ##STR1## in which the phenyl rings of the biphenyl molecule can be substituted with up to 8 fluorine and/or chlorine atoms are suitable as catalysts.

REFERENCES:
patent: 5171892 (1992-12-01), Burk et al.
H. Jendralla, et al., "Efficient Synthesis of (R)-and (S)-(6,6'-Difluorobiphenyl-2,2'-diyl) bis(diphenylphosphine); Electron-Poor Biphenyl-Type Ligands for Transition Metal Catalysts," Tetrahedron: Asymmetry, vol. 5:7, pp. 1297-1320 (1994).
Zassinovich et al., "Asymmetric Hydrogen Transfer Reactions Promoted by Homogeneous Transition Metal Catalysts", Chemical Reviews, 92(5):1051-1069 (1992).
Uehara et al., Journal of Organometallic Chemistry, vol. 239, pp. 1-10 1982 .

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