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21. 发明专利

JP2006282546A Method for producing mandelic acid compounds 有权
标题翻译：生产苹果酸化合物的方法
公开(公告)号：JP2006282546A
公开(公告)日：2006-10-19
申请号：JP2005102319
申请日：2005-03-31
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： MORI HIROYUKI , SATO EIJI , NOGAMI HIROYUKI , SAITO TAKAYUKI , KOKUBU NOBUTAKA , NINOMIYA YASUHIRO , OGURA KUNIYOSHI
IPC分类号： C07C51/08 , C07B53/00 , C07B61/00 , C07C51/573 , C07C59/50
摘要： PROBLEM TO BE SOLVED: To provide a technique for profitably producing a highly pure mandelic acid compound in high recovery in a waste-reduced state.
SOLUTION: This method for producing the mandelic acid compound comprises the following processes (1) to (4). (1) The process for hydrolyzing a mandelonitrile compound. (2) The process for crystallizing the mandelic acid compound obtained in the process (1) and then separating the solid product from the liquid. (3) The process for recrystallizing the mandelic acid crystals separated in the process (2). (4) The process for recycling the mother liquid obtained in the process (3) to one of the processes (1) to (3).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在废物还原状态下以高回收率有利地生产高纯度扁桃酸化合物的技术。解决方案：该生产扁桃酸化合物的方法包括以下方法（1）至（4）。（1）水解扁桃腈化合物的方法。（2）在方法（1）中获得的扁桃酸化合物结晶然后将固体产物与液体分离的方法。（3）在方法（2）中分离的扁桃酸晶体的再结晶过程。（4）将工序（3）中得到的母液再循环至工序（1）〜（3）中的任一工序。版权所有（C）2007，JPO＆INPIT

22. 发明专利

JP2008044856A MANUFACTURING METHOD OF α-HYDROXYCARBOXYLIC ACID 有权
标题翻译： α-羟基羧酸的制备方法
公开(公告)号：JP2008044856A
公开(公告)日：2008-02-28
申请号：JP2006219276
申请日：2006-08-11
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： KOKUBU NOBUTAKA , SAITO TAKAYUKI , MORI HIROYUKI , NOGAMI HIROYUKI , NINOMIYA YASUHIRO , OGURA KUNIYOSHI
IPC分类号： C07C51/43 , C07B57/00 , C07C59/50
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of an α-hydroxycarboxylic acid useful as a raw material of pharmaceuticals and agrochemicals, liquid crystal materials and optical resolution agents. SOLUTION: The crystal of the α-hydroxycarboxylic acid with a high chemical purity can be manufactured in a high yield by adding a strong acid to an aqueous solution of an alkali α-hydroxycarboxylate thereby to adjust the pH thereof to 1.0-3.0 and causing the α-hydroxycarboxylic acid to crystallize from the aqueous solution. The α-hydroxycarboxylic acid with a high optical purity can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供可用作药物和农业化学品，液晶材料和光学拆分剂的原料的α-羟基羧酸的制备方法。解决方案：通过向α-羟基羧酸碱的水溶液中加入强酸可以高产率制备具有高化学纯度的α-羟基羧酸的结晶，从而将其pH值调节至1.0-3.0 并使α-羟基羧酸从水溶液中结晶。可以得到具有高光学纯度的α-羟基羧酸。版权所有（C）2008，JPO＆INPIT

23. 发明专利

JP2006304667A METHOD FOR PRODUCING OPTICALLY ACTIVE CYANOHYDRIN AND METHOD FOR PRODUCING OPTICALLY ACTIVE α-HYDROXYCARBOXYLIC ACID 有权
标题翻译：生产光学活性氰胺的方法及生产光学活性α-羟基羧酸的方法
公开(公告)号：JP2006304667A
公开(公告)日：2006-11-09
申请号：JP2005130166
申请日：2005-04-27
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： OGURA KUNIYOSHI , SATO EIJI , MORI HIROYUKI , NOGAMI HIROYUKI , KATO OSAMU , SAITO TAKAYUKI , KOKUBU NOBUTAKA , NINOMIYA YASUHIRO
IPC分类号： C12P13/00
摘要： PROBLEM TO BE SOLVED: To provide an efficient method for producing an optically active cyanohydrin which can be accumulated at a high concentration and to provide a safe method for producing an optically active α-hydroxycarboxylic acid in high yield. SOLUTION: The method for producing the optically active cyanohydrin comprises carrying out an enzymic reaction in the presence of an organic solvent substantially immiscible with water using a carbonyl compound and HCN as substrates. The method for producing the optically active cyanohydrin is characterized in that a state in which the molar concentration of the carbonyl compound in a reaction solution is ≤0.4 mol/kg and not higher than the molar concentration of the HCN is maintained. The method for producing the optically active α-hydroxycarboxylic acid comprises hydrolyzing the optically active cyanohydrin obtained by the method. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以高浓度积聚的光学活性羟腈的有效方法，并提供以高产率制备光学活性α-羟基羧酸的安全方法。解决方案：制备光学活性羟腈的方法包括使用羰基化合物和HCN作为底物，在与水基本上不混溶的有机溶剂的存在下进行酶反应。光学活性羟腈的制造方法的特征在于，维持反应溶液中的羰基化合物的摩尔浓度为0.4mol / kg以上且不高于HCN的摩尔浓度的状态。制造光学活性α-羟基羧酸的方法包括水解通过该方法获得的光学活性的氰醇。版权所有（C）2007，JPO＆INPIT

24. 发明专利

JP2006273725A Method for purifying mandelic acids 有权
标题翻译：纯化食用酸的方法
公开(公告)号：JP2006273725A
公开(公告)日：2006-10-12
申请号：JP2005091681
申请日：2005-03-28
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： OGURA KUNIYOSHI , SATO EIJI , MORI HIROYUKI , NOGAMI HIROYUKI , SAITO TAKAYUKI , KOKUBU NOBUTAKA , NINOMIYA YASUHIRO
IPC分类号： C07C51/43 , C07C59/11
摘要： PROBLEM TO BE SOLVED: To provide a method for purifying mandelic acids, capable of giving a high-purity crystal of the mandelic acids having a low content of a dimer of the mandelic acids, without using an organic solvent.
SOLUTION: This method for purifying the mandelic acids comprises mixing contact of a crystal containing the dimer of the mandelic acids and the mandelic acids with an aqueous solvent not containing the organic solvent (a mixed liquid after mixed may be such a solution that the mandelic acids are completely dissolved in water or may be such a mixed suspension that the mandelic acids are not completely dissolved therein), and then subjecting the mixed liquid to solid-liquid separation at 0-60°C under an acidic condition of a pH of 7.0 or less.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种纯化扁桃酸的方法，其能够提供扁桃酸的二聚体含量低的扁桃酸的高纯度晶体，而不使用有机溶剂。解决方案：用于纯化扁桃酸的方法包括将含有扁桃酸的二聚体和扁桃酸的晶体与不含有机溶剂的水性溶剂的混合物混合（混合后的混合液体可以是这样的溶液，扁桃酸完全溶解在水中，或者可以是这样的混合悬浮液，其中扁桃酸不完全溶解在其中），然后在0-60℃下在pH的酸性条件下使混合液体进行固液分离 7.0以下。版权所有（C）2007，JPO＆INPIT

25. 发明专利

JP2006213635A Method for producing mandelic acid and crystal of mandelic acid 审中-公开
标题翻译：生产苹果酸和水杨酸晶体的方法
公开(公告)号：JP2006213635A
公开(公告)日：2006-08-17
申请号：JP2005027775
申请日：2005-02-03
申请人： Mitsubishi Rayon Co Ltd , 三菱レイヨン株式会社
发明人： MORI HIROYUKI , SATO EIJI , NOGAMI HIROYUKI , SAITO TAKAYUKI , KOKUBU NOBUTAKA , NINOMIYA YASUHIRO , OGURA KUNIYOSHI
IPC分类号： C07C51/43 , C07B61/00 , C07C51/08 , C07C59/50
摘要： PROBLEM TO BE SOLVED: To provide a method for producing high purity mandelic acid useful as a medicinal and agrochemical row material, a liquid crystal material and a reagent for optical resolution, and to provide crystal of mandelic acid. SOLUTION: The method for producing the high purity mandelic acid comprises acid hydrolysis of mandelonitrile, aging of the produced mandelic acid in a state of precipitating a part thereof, and recovery of the crystal of the mandelic acid. The crystal of mandelic acid contains the dimer of not more than 0.1% (surface percentage) based on 100 surface% total of the mandelic acid and the dimer thereof in high performance liquid chromatographic measurement. COPYRIGHT: (C)2006,JPO&NCIPI

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