(+/-)-N-carboxymethyl-(2,2'-imino-dipropionic acid ) | 54196-33-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (+/-)-N-carboxymethyl-(2,2'-imino-dipropionic acid )
• 英文别名: (+/-)-Carboxymethyl-bis-(1-carboxy-aethyl)-amin；(+/-)-N-Carboxymethyl-(2,2'-imino-dipropionsaeure)；Inakt.Carboxymethyl-bis-(α-carboxy-aethyl)-amin；N,N-Bis-(1-carboxy-aethyl)-glycin；Bis-(α-carboxy-aethyl)-glycin；Nitriloessigdipropionsaeure；2-[1-Carboxyethyl(carboxymethyl)amino]propanoic acid
• CAS: 54196-33-7
• 化学式: C₈H₁₃NO₆
• 分子量: 219.194
• InChiKey: QXPNNMCHQCZFFZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.4
• 重原子数：
  15
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  115
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 sodium hydroxide 、 乙醇 作用下， 生成 (+/-)-N-carboxymethyl-(2,2'-imino-dipropionic acid )
  参考文献：
  名称：

  Scheibler; Neef, Chemische Berichte, 1926, vol. 59, p. 1503

  摘要：

  DOI：

文献信息

• PROCESS FOR PRODUCING DIMETHYLAMINE
  申请人：NITTO KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0744395A1

  公开（公告）日：1996-11-27

  To develop a zeolite catalyst which can prevent the drastic lowering of dimethylamine selectivity to be caused in the production of dimethylamine using a zeolite catalyst when the conversion of methanol is high, and which can give higher dimethylamine selectivity and lower trimethylamine selectivity as well as higher methanol-consuming reaction activity; and to provide a process for producing dimethylamine with high selectivity, using the catalyst. A process for producing dimethylamine by allowing methanol, or methanol and a methylamine mixture, or a methylamine mixture to react with ammonia in the gaseous phase in the presence of a catalyst, characterized in that a modified zeolite prepared by treating a zeolite with a solution containing a chelating agent is used as the catalyst.

  开发一种沸石催化剂，该催化剂可以防止在使用沸石催化剂生产二甲胺的过程中，当甲醇转化率较高时导致二甲胺选择性急剧下降，并且可以获得较高的二甲胺选择性和较低的三甲胺选择性以及较高的消耗甲醇的反应活性；以及提供一种使用该催化剂生产具有高选择性的二甲胺的工艺。 一种在催化剂存在下使甲醇、或甲醇和甲胺混合物、或甲胺混合物在气相中与氨反应生产二甲胺的工艺，其特征在于催化剂是用含有螯合剂的溶液处理沸石而制备的改性沸石。
• POLYESTER RESIN COMPOSITIONS, CATALYST FOR POLYESTER PRODUCTION, POLYESTER FILM, AND MAGNETIC RECORDING MEDIUM
  申请人：TORAY INDUSTRIES, INC.

  公开号：EP1550683A1

  公开（公告）日：2005-07-06

  The present invention aims to provide a practical polyester that can be produced substantially without using an antimony compound as a polycondensation catalyst. (I) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1 µm or more, is less than 100/0.02 mg; and (II) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which organic polymer particles are contained in amount of 0.1 to 5 wt%, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3 µm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.

  本发明的目的是提供一种实用的聚酯，这种聚酯基本上可以在不使用锑化合物作为缩聚催化剂的情况下生产。 (I) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中等效圆直径为 1 微米或以上的含钛颗粒的数量密度小于 100/0.02 毫克；以及 (II) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中等效圆直径为 1 微米或以上的含钛颗粒的数量密度小于 100/0.02 毫克。 (II) 本发明提供了一种聚酯树脂组合物，按重量计，该组合物含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中有机聚合物颗粒的含量为 0.1 至 5 wt%，通过动态光散射法测定，有机聚合物颗粒的平均颗粒直径为 0.05 至 3 µm，相对于颗粒总数，粗颗粒的含量为 0.01% 或更少，粗颗粒的直径至少为平均颗粒直径的两倍。
• Organosilicon compound
  申请人：Chisso Corporation

  公开号：EP1686133A2

  公开（公告）日：2006-08-02

  Since the majority of conventional organic/inorganic composite materials are obtained by mechanical blending of a silsesquioxane and an organic polymer or other means, it was extremely difficult to control the structure of the composite as a molecular agglomerate. In order to solve such a problem, the invention is to provide a silicon compound represented by Formula (1). This novel silicon compound has a living radical polymerization initiating ability for addition polymerizable monomers of a wide range. In Formula (1), R1 is hydrogen, an alkyl, an aryl, or an arylalkyl; R2 is an alkyl, phenyl, or cyclohexyl; and A is a group having a polymerization initiating ability for addition polymerizable monomers.

  由于传统的有机/无机复合材料大多是通过硅倍半氧烷和有机聚合物的机械混合或其他方式获得的，因此要控制复合材料的分子团聚结构极为困难。为了解决这一问题，本发明提供了一种由式（1）表示的硅化合物。这种新型硅化合物对范围广泛的可加成聚合单体具有活自由基聚合引发能力。在式（1）中，R1 是氢、烷基、芳基或芳烷基；R2 是烷基、苯基或环己基；A 是对可加成聚合单体具有聚合引发能力的基团。
• Organosilicon compound
  申请人：Chisso Corporation

  公开号：EP1849788A1

  公开（公告）日：2007-10-31

  There is provided a silicon compound represented by Formula (1) : wherein A is a group represented by Formula, (2-1): wherein Z1 is an alkylene having 3 to 20 carbon atoms, and arbitrary -CH2- in this alkylene may be replaced by -O-; R3 is hydrogen, an alkyl having 1 to 20 carbon atoms, an aryl having 6 to 20 carbon atoms, or an arylalkyl having 7 to 20 carbon atoms; R4 is an alkyl having 1 to 20 carbon atoms, an aryl having 6 to 20 carbon atoms, or an arylalkyl having 7 to 20 carbon atoms; and X1 is a halogen, and a process for producing said silicon compound represented by Formula (1-1).

  提供了一种由式（1）表示的硅化合物： 其中 A 是由式（2-1）表示的基团： 其中 Z1 是具有 3 至 20 个碳原子的亚烷基，该亚烷基中任意的-CH2-可被-O-取代； R3 是氢、具有 1 至 20 个碳原子的烷基、具有 6 至 20 个碳原子的芳基或具有 7 至 20 个碳原子的芳烷基； R4 是具有 1 至 20 个碳原子的烷基、具有 6 至 20 个碳原子的芳基或具有 7 至 20 个碳原子的芳烷基； X1 是卤素，以及 生产式（1-1）所代表的硅化合物的工艺。
• CATALYST FOR PRODUCING POLYESTER AND METHOD FOR PRODUCING POLYESTER
  申请人：TORAY INDUSTRIES, INC.

  公开号：EP2006315A1

  公开（公告）日：2008-12-24

  Disclosed is a method for obtaining a polyester, wherein a dicarboxylic acid or an ester-forming derivative thereof and a diol or an ester-forming derivative thereof are esterified or transesterified, and then the resulting product is polycondensed in the presence of a titanium polycondensation catalyst. In this method, generation of an extraneous material caused by the catalyst and mold contamination during molding can be reduced by adding a phosphorus compound having a specific structure, and thus there can be obtained a polyester which is remarkably improved in thermal stability and a color tone of the polymer when compared with the conventional polyesters.

  本发明公开了一种获得聚酯的方法，其中二羧酸或其酯类衍生物与二元醇或其酯类衍生物进行酯化或酯交换，然后在钛缩聚催化剂存在下对所得产物进行缩聚。在这种方法中，通过添加具有特定结构的磷化合物，可以减少在成型过程中由催化剂和模具污染引起的外来物质的产生，从而可以获得一种与传统聚酯相比在热稳定性和聚合物色调方面有显著改善的聚酯。