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    • 1. 发明专利
    • Production method for optically active amino acid and n-alkoxycarbonylamino acid
    • 光活性氨基酸和N-烷氧羰基氨基酸的生产方法
    • JP2013255505A
    • 2013-12-26
    • JP2013162935
    • 2013-08-06
    • Mitsubishi Rayon Co Ltd三菱レイヨン株式会社
    • KATO OSAMUMORI HIROYUKI
    • C12P41/00C07C227/32C07C229/08
    • PROBLEM TO BE SOLVED: To produce an optically active amino acid and an optically active N-alkoxycarbonylamino acid which can obtain an optically active amino acid and an optically active N-alkoxycarbonylamino acid with good yield.SOLUTION: After a pH of an aqueous solution including racemic amino acid amide is adjusted by an acid in the vicinity of neutral, enantioselective hydrolysis reaction by amidase of amino acid amide is carried out. Afterwards, in a production method for an optically active amino acid, an inorganic base compound of an amount of mol with which the acid is almost neutralized is added in the aqueous solution, and furthermore, an optically active amino acid is crystalized and recovered by substituting the solvent of the aqueous solution from water by the solvent of an alcohol with three or more carbons. A production method for an optically active N-alkoxycarbonylamino acid uses a raw material of optically active N-alkoxycarbonylamino acid production without purification operation of optically active amino acid which is recovered from a hydrolysis reaction solution.
    • 要解决的问题:制备光学活性氨基酸和光学活性N-烷氧基羰基氨基酸,其可以以良好的产率获得光学活性氨基酸和光学活性N-烷氧基羰基氨基酸。溶液:在包括 外消旋氨基酸酰胺由中性附近的酸调节,进行酰氨基酰胺酰胺酶的对映选择性水解反应。 然后,在光学活性氨基酸的制造方法中,在该水溶液中添加摩尔量几乎中和的无机碱化合物,此外,光学活性氨基酸通过置换 通过具有三个或更多个碳的醇的溶剂将水溶液从水中溶解。 光学活性N-烷氧基羰基氨基酸的制备方法使用旋光活性N-烷氧基羰基氨基酸的原料,而不需要从水解反应溶液中回收的光学活性氨基酸的纯化操作。
    • 4. 发明专利
    • Method for producing alkanediol
    • 生产阿尔卡尼醇的方法
    • JP2008273920A
    • 2008-11-13
    • JP2007211793
    • 2007-08-15
    • Mitsubishi Rayon Co Ltd三菱レイヨン株式会社
    • SAITO TAKAYUKIMORI HIROYUKI
    • C07C29/147C07B53/00C07C31/20
    • PROBLEM TO BE SOLVED: To easily produce an alkanediol of high purity at a high yield useful as a raw material for a medicine, an agricultural chemical, a liquid crystal and a polymer, and to produce an alkanediol of high optical purity, without decreasing its optical purity in the case of using an optically active substance as a raw material.
      SOLUTION: Disclosed is a method for producing an alkanediol by reducing an alkanediester by virtue of a metal hydride such as a hydrogenated bis(2-methoxyethoxy)aluminum-sodium and further post-treating the resulting product with an aqueous solution of sodium-potassium tartrate.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 待解决的问题:为了容易地以高产率生产用作药物,农药,液晶和聚合物的原料的高纯度链烷二醇,并且制备高光学纯度的链烷二醇, 在使用光学活性物质作为原料的情况下不降低其光学纯度。 解决方案:公开了通过金属氢化物如氢化双(2-甲氧基乙氧基)铝钠还原烷基二醇制备链烷二醇的方法,并进一步用钠水溶液对所得产​​物进行后处理 酒石酸钾。 版权所有(C)2009,JPO&INPIT