PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVES

PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVES

PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVES An industrial process for producing high-purity optically active amine derivatives in high yield while inhibiting the formation of by-products, which comprises subjecting (E)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8- ylidene)ethylamin...

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Hauptverfasser: INAGAKI, ATSUSHI, MUTOU, EIGO, SUGISAKI, SHIGEHARU, URAYAMA, SHINICHI, OKADA, TAKASHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVES An industrial process for producing high-purity optically active amine derivatives in high yield while inhibiting the formation of by-products, which comprises subjecting (E)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8- ylidene)ethylamine to asymmetric reduction, catalytically reducing the obtained product at a reaction temperature of 40 to 100 C and a pH of 3 to 9, subjecting the obtained (S)-2-(1,6,7,8-tetrahydro -2H-indeno [5,4- b]furan-8-yl)ethylamine to propionylation, and then crystallizing the reaction mixture.