Organic compounds -- part of the class 532-570 series – Organic compounds – Boron containing
Patent
1995-01-27
1996-08-13
Ramsuer, Robert W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Boron containing
C07F 502
Patent
active
055457592
ABSTRACT:
The invention relates to a production method, wherein, with 1 equivalent of pentafluorobenzene of the formula C.sub.6 HF.sub.5 M, 0.5 to 1.5 equivalents of an organometallic compound of the formula RM, wherein R is a hydrocarbon group of 1 to 10 carbon atoms and m is an alkali metal ion, are reacted at -120.degree. to 80.degree. C. in an ether type solvent, a hydrocarbon type solvent or a mixed solvent of the ether type solvent with the hydrocarbon type solvent to generate a pentafluorophenyl alkali metal salt of the formula C.sub.6 F.sub.5 M. Next, 1 equivalent of a boron compound of the formula BX.sub.3, where X is halogen, OR or NR'R" is reacted with 2.1 to 3.9 equivalents of a pentafluorophenyl alkali metal salt of the formula C.sub.6 F.sub.5 M within a temperature range from -120.degree. to 80.degree. C. to produce tris(pentafluorophenyl)borane of the formula (C.sub.6 F.sub.5).sub.3 B or a complex of tris(pentafluorophenyl)borane coordinated with the ether type solvent.
REFERENCES:
patent: 3311662 (1967-03-01), Washburn et al.
Chemical Abstracts, vol. 93, No. 19, Nov. 10, 1980, AN 185318w, S. S. Dua, et al., p. 572, "Reactions of Hydrofluorobenzenes With Some Organolithium Reagents, Methyllithium, N-Butyllithium and Tert-Butyllithium".
Chemical Abstracts, vol. 59, No. 8, Oct. 14, 1963, AN 8771b, A. G. Massey, et al., "Tris(Pentafluorophenyl)Boron".
Chemical Abstracts, vol. 100, No. 17, Apr. 23, 1984, AN 139179s, Hiroshi Kobayashi, et al., "Synthesis of Trifluoromethylated Tetraphenylborates and the Solvent-Extraction Properties of Their Ion-Associates With Alkali-Metal Ions. Application of Tetraarylborates to Separation Analysis of Univalent Cations", p. 660.
The Journal of Organic Chemistry, vol. 29, 1964, pp. 2385-2389, Robert J. Harper, Jr., et al. "Reactions of Organometallics With Fluoroaromatac Compounds".
Ikeda Yoshihiko
Ishimaru Kenji
Kaji Eiichi
Yamane Takeo
Peabody John
Ramsuer Robert W.
Tosoh Akzo Corporation
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