Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1998-12-18
2000-10-10
Shaver, Paul F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
568 1, C07F 302, C07F 502
Patent
active
061298638
ABSTRACT:
Perfluoroaryl Grignard reagents are produced from a hydrocarbyl Grignard reagent and polyhaloaromatic compounds via separate additions of different polyhaloaromatic compounds, such that the conversion of hydrocarbyl Grignard reagent to the desired perfluoroaryl Grignard reagent is essentially complete, and thus the reaction product is free or essentially free of agents that may negatively affect subsequent reactions. The perfluoroaryl Grignard reagents may be further reacted with boron trihalides in order to obtain tris(perfluoroaryl)boranes or tetrakis(perfluoroaryl)borates.
REFERENCES:
patent: 5362423 (1994-11-01), Ikeda et al.
patent: 5399780 (1995-03-01), Ikeda et al.
patent: 5473036 (1995-12-01), Piotrowski et al.
patent: 5600004 (1997-02-01), Diefenbach
patent: 5693261 (1997-12-01), Krzystowczyk et al.
Nield, E. et al., "Aromatic Polyfluro-compounds. Part I. The Synthesis of Aromatic Polyfluoro-compounds from Pentalflurobenzene", J. Chem. Soc., 1959, pp. 166-171.
Respess, W. L. et al., "A New Synthesis of Perfluoroaromatic Grignard Reagents", J. Organometal. Chem., vol. 18, 1969, pp. 263-274.
Respess, William L. et al., "Synthesis of Some Pentafluorophenylmagnesium Compounds", J. Organometal. Chem., vol. 11, 1968, pp. 619-622.
Harper, Robert J. et al., "Reactions of Organometallics with Fluroaromatic Compounds.sup.1 ", J. Organic Chem., vol. 29, 1964 pp. 2385-2389.
Respess, W. L. et al., "The Preparation of a Grignard Reagent From Hexaflurobenzene by the Entrainment Technique", J. Organometal. Chem., vol. 19, 1969, pp. 191-195.
Jukes, A. E. et al., "(Pentafluorophenyl)Magnesium Chloride", J. Organometal. Chem., vol. 17, 1969, pp. 145-148.
Kobayashi, Hiroshi et al., "Synthesis of Trifluoromethylated Tetraphenylborates and Solvent-extraction Properties of their Ion-associates with Alkali-metal Ions", Rep. Asahi Glass Found. Ind. Technol, vol. 42, 1983, pp. 137-145.
Zakharkin, L. I. et al., "Effect of Solvents on Reactions of Organometallic Compounds; II. Exchange of Radicals Between Rm.sub.g X And R'X", J. Organometal. Chem., vol. 2, 1964, pp. 309-313.
Diefenbach Steven P.
Everly Charles R.
Krzystowczyk Niomi L.
Lee John Y.
Lin Ronny W.
Albemarle Corporation
Pippenger Philip M.
Shaver Paul F.
LandOfFree
Clean generation of a perfluoroaryl grignard reagent does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clean generation of a perfluoroaryl grignard reagent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clean generation of a perfluoroaryl grignard reagent will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2254073