| 摘要 |
The present invention is directed to a method of preparing an organic-alkali metal-boron salt of the formula: ZBArmRnArx' wherein Z is an alkali metal selected from the group consisting of lithium and sodium, wherein B is boron, wherein Ar is an aromatic organic radical selected from a specified group of radicals, wherein R is an organic radical selected from methyl and ethyl, wherein Ar' is an aromatic organic radical selected from the group consisting of specified divalent dicyclic radicals, wherein m is a numerical value such that 0</=m</=4, wherein n is a numerical value such that 0</=n</=2, and wherein x is a numerical value such that 0</=x</=2, subject to the provisio that the sum of m and n and x is such that the total valence of the organic radicals Ar, R and Ar' equals four. The method involves the reaction of a nitrogen-containing compound of the formula: QHBArmRnArx' wherein Q is selected from the group consisting of specified nitrogen-containing groups, and wherein all other variables are as defined above, with an alkali metal compound of the formula: ZX wherein Z is defined above and wherein X is selected from the group consisting of hydrogen, specified nitrogen-containing radicals, any Ar as defined above and any R as defined above. The reaction is carried out in ether solvent such as dioxolane, dimethoxyethane, diglyme, tetrahydrofuran, tetrahydropyran, dioxane, diethyl ether and the like. In a preferred embodiment, Q is NH3 and X is hydrogen.
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