发明授权
US08614316B2 Optically active quaternary ammonium salt having axial asymmetry and process for producing α-amino acid and derivative thereof with the same 有权
具有轴向不对称性的光学活性季铵盐及其制备α-氨基酸及其衍生物的方法

Optically active quaternary ammonium salt having axial asymmetry and process for producing α-amino acid and derivative thereof with the same
摘要:
The present invention provides a chiral phase-transfer catalyst of the following formula (I): The compound (I) can be produced by reacting a 2,2′-dimethylene bromide-1,1′-biphenyl derivative, which can be produced through comparatively small number of steps, with an easily available secondary amine.
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