| 摘要 |
PCT No. PCT/JP98/00477 Sec. 371 Date Aug. 5, 1999 Sec. 102(e) Date Aug. 5, 1999 PCT Filed Feb. 5, 1998 PCT Pub. No. WO98/34938 PCT Pub. Date Aug. 13, 1998A method of producing a boron-based compound represented by general formula (1) including a first step of reacting lithium, magnesium or a compound containing lithium, a compound represented by general formula (2), and a compound represented by general formula (3): R2-Y to produce a borate metal salt represented by general formula (4), and a second step of adding to the borate metal salt an onium halide represented by general formula (5): Z+xX- to effect ion exchange reaction (the symbols in the formulae have the same meanings as described in the specification). According to the production method of the present invention, a high purity boron-based compound represented by the general formula (1) above useful as a photopolymerization initiator and a light-absorbing decolorizing agent can be obtained in a short time and a high yield as compared with the conventional method.
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