Stabilizer for (fluoroaryl)borane compound and methods of stabil

Details Stabilizer for (fluoroaryl)borane compound and methods of stabil Stabilizer for (fluoroaryl)borane compound and methods of stabil

1998-06-25

2000-09-12

Vollano, Jean F

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

Organic compounds

Boron containing

568 1, C07C 502

Patent

active

061180262

ABSTRACT:
A (fluoroaryl)borane compound expressed by General Formula (1): ##STR1## where each of R.sub.1 -R.sub.5 represents a hydrogen atom, a fluorine atom, a hydrocarbon group, or an alkoxy group, provided that at least one of R.sub.1 -R.sub.5 represents a fluorine atom, X represents a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, and n represents 2 or 3, is stabilized by letting inorganic metal salts having a fluorine atom coexist with the (fluoroaryl)borane compound in a hydrocarbon solution. After the hydrocarbon solution is concentrated in the presence of the inorganic metal salts, the inorganic metal salts are removed and the fluoroaryl)borane compound is crystallized. Consequently, it has become possible to provide a method of stabilizing a (fluoroaryl)borane compound by suppressing the decomposition reaction while the solution is heated and concentrated, stored (preserved), or transported/transferred, and a crystallizing method of isolating highly-pure crystals (powders) of the (fluoroaryl)borane compound efficiently.

REFERENCES:
patent: 5510536 (1996-04-01), Ikeda
patent: 5545759 (1996-08-01), Ikeda
"Perfluorophenyl Derivatives of the Elements I. Tris(pentafluorophenyl)boron", A.G. Massey et al., Journal of Organometallic Chemistry, J. Organometal Chem., 2(1964), pp. 245-250.
Aldrich chemical catalogue p. 903, 1996.
Susan Budavari et al., The Merck Index 11 Ed, Merck & Co., Inc. Dec. 29, 1989 p 871, col. 1 .paragraph. 5409; XP-002100310.

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