| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for industrially readily and efficiently purifying optically activeα-methyl-bis-3,5-(trifluoromethyl)benzylamine of an important intermediate for a medicine and an agrochemical, in high optical purity. SOLUTION: The optically activeα-methyl-bis-3,5-(trifluoromethyl) benzylamines are purified so as to have a high optical purity by forming theα-methyl-bis-3,5-(trifluoromethyl)benzylamines into a salt of an organic acid, and recrystallizing the resultant salt.
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