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    • 3. 发明授权
    • Processes for the recovery of optically active diacyltartaric acids
    • 回收光学活性二酰基酒石酸的方法
    • US07358384B2
    • 2008-04-15
    • US10542498
    • 2003-12-22
    • Seiji MoriiToshihiro FujinoHaruyo Sato
    • Seiji MoriiToshihiro FujinoHaruyo Sato
    • C07C69/76C07C69/66C07C51/42C07C59/255
    • C07C67/52C07B2200/07Y02P20/582C07C69/76
    • When a salt of an amine and an optically active diacyltartaric acid, or a diastereomer salt of an optically active amine and an optically active diacyltartaric acid, obtained by optically resolving a racemic amine using the optically active diacyltartaric acid, is salt-exchanged with an acid aqueous solution, the optically active diacyltartaric acid is added in the acid aqueous solution beforehand.Furthermore, a raw material containing a racemic amine and an optically active diacyltartaric acid is optically resolved, and the diastereomer salt of the optically active amine and the optically active diacyltartaric acid respectively of one isomer type, is separated. The obtained diastereomer salt is dissociated using an acid aqueous solution containing the optically active diacyltartaric acid, for recovering the optically active diacyltartaric acid, and the obtained optically active diacyltartaric acid is recycled into an optical resolution step as a raw material of the optical resolution step.
    • 当通过光学拆分外消旋胺使用光学活性的二酰基酒石酸获得的胺和光学活性二酰基酒石酸盐或光学活性胺和光学活性二酰基酒石酸的非对映体盐与酸盐交换时, 水溶液中,将光学活性的二酰基酒石酸预先加入到酸性水溶液中。 此外,含有外消旋胺和光学活性二酰基酒石酸的原料被光学拆分,分离出一种异构体类型的光学活性胺和光学活性二酰基酒石的非对映异构体盐。 使用含有光学活性二酰基酒石酸的酸性水溶液使得到的非对映异构体盐解离,回收光学活性的二酰基酒石酸,将得到的光学活性二酰基酒石再循环至作为光学拆分工序的原料的光学拆分工序。
    • 4. 发明申请
    • Processes for the recovery of optically active diacyltartatic acids
    • 回收光学活性二酰基鞣酸的方法
    • US20060058546A1
    • 2006-03-16
    • US10542498
    • 2003-12-22
    • Seiji MoriiToshihiro FujinoHaruyo Sato
    • Seiji MoriiToshihiro FujinoHaruyo Sato
    • C07C69/86C07C69/66
    • C07C67/52C07B2200/07Y02P20/582C07C69/76
    • When a salt of an amine and an optically active diacyltartaric acid, or a diastereomer salt of an optically active amine and an optically active diacyltartaric acid, obtained by optically resolving a racemic amine using the optically active diacyltartaric acid, is salt-exchanged with an acid aqueous solution, the optically active diacyltartaric acid is added in the acid aqueous solution beforehand. Furthermore, a raw material containing a racemic amine and an optically active diacyltartaric acid is optically resolved, and the diastereomer salt of the optically active amine and the optically active diacyltartaric acid respectively of one isomer type, is separated. The obtained diastereomer salt is dissociated using an acid aqueous solution containing the optically active diacyltartaric acid, for recovering the optically active diacyltartaric acid, and the obtained optically active diacyltartaric acid is recycled into an optical resolution step as a raw material of the optical resolution step.
    • 当通过光学拆分外消旋胺使用光学活性的二酰基酒石酸获得的胺和光学活性二酰基酒石酸盐或光学活性胺和光学活性二酰基酒石酸的非对映体盐与酸盐交换时, 水溶液中,将光学活性的二酰基酒石酸预先加入到酸性水溶液中。 此外,含有外消旋胺和光学活性二酰基酒石酸的原料被光学拆分,分离出一种异构体类型的光学活性胺和光学活性二酰基酒石的非对映异构体盐。 使用含有光学活性二酰基酒石酸的酸性水溶液使得到的非对映异构体盐解离,回收光学活性的二酰基酒石酸,将得到的光学活性二酰基酒石再循环至作为光学拆分工序的原料的光学拆分工序。