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AXIS-ASYMMETRIC OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT, AND PROCESS FOR PRODUCTION OF α-AMINO ACID OR DERIVATIVE THEREOF USING THE QUATERNARY AMMONIUM SALT
AXIS-ASYMMETRIC OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT, AND PROCESS FOR PRODUCTION OF α-AMINO ACID OR DERIVATIVE THEREOF USING THE QUATERNARY AMMONIUM SALT
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机译：轴对称的光学活性季铵盐，以及使用季铵盐生产α-氨基酸或其衍生物的方法
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摘要
Disclosed is a chiral phase-transfer catalyst having a simplified structure, which can be produced by reacting a 2,2'-dimethylenebromide-1,1'-binaphthyl derivative (which can be produced in relatively small numbers of steps) with a secondary amine (which is readily available). The catalyst is a compound represented by the formula (I) having a long-chain alkyl group R7 in its chemical structure. The catalyst is expected to show a high stereoselectivity even in a reaction where a conventional catalyst does not show a satisfactory stereoselectivity such as an asymmetric alkylation reaction.
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