ASYMMETRICALLY MODIFIED BORON HYDRIDE COMPOUNDS, PROCESS FOR ITS PREPARATION, AND PROCESS FOR PREPARING OPTICALLY ACTIVE ALCOHOL DERIVATIVE USING SAME

摘要

The present invention relates to an asymmetrically modified borohydride type compound obtained by reacting an optically active amino alcohol represented by the formula, or its salt with an acid with a borohydride compound; its production method; and a method for producing an optically active alcohol derivative useful as fungicides, herbicides or plant growth regulators and represented by the formula, which comprises asymmetrically reducing a ketone compound represented by the formula, with the asymmetrically modified borohydride type compound.