β-Ethoxypropionsaeure-isopropylester | 19758-17-9

• 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: β-Ethoxypropionsaeure-isopropylester
• 英文别名: Propan-2-yl 3-ethoxypropanoate
• CAS: 19758-17-9
• 化学式: C₈H₁₆O₃
• 分子量: 160.213
• InChiKey: CEXXQKSPCPPORI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：NISSAN CHEMICAL INDUSTRIES, LTD.

  公开号：US20160244673A1

  公开（公告）日：2016-08-25

  To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and in the liquid crystal alignment property. A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having structural units represented by the formula (1) and structural units represented by the formula (3) and an imidized polymer of the polyimide precursor: wherein X 1 and X 4 are a tetravalent organic group, Y 1 is a bivalent organic group having a thermally-leaving group, Y 2 is a bivalent organic group, R 1 and R 2 are a hydrogen atom or a C 1-5 alkyl group, and Z 1 and Z 2 are a hydrogen atom, or a C 1-10 alkyl group, C 2-10 alkenyl group or C 2-10 alkynyl group which may have a substituent.

  提供一种液晶定向剂，以获得具有优异密封剂附着性和液晶定向性的液晶定向膜。所述液晶定向剂包含至少一种聚合物，所述聚合物从以下组中选择：具有由公式（1）和公式（3）表示的结构单元的聚酰亚胺前体和聚酰亚胺前体的缩酐聚合物：其中X1和X4是四价有机基团，Y1是具有热离基的双价有机基团，Y2是双价有机基团，R1和R2是氢原子或C1-5烷基基团，Z1和Z2是氢原子或C1-10烷基基团、C2-10烯基基团或C2-10炔基基团，可以具有取代基。
• LIQUID CRYSTAL ALIGNING AGENT CONTAINING POLYIMIDE PRECURSOR HAVING THERMALLY-LEAVING GROUP AND/OR POLYIMIDE
  申请人：NISSAN CHEMICAL INDUSTRIES, LTD.

  公开号：US20160264867A1

  公开（公告）日：2016-09-15

  To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and a substrate of a liquid crystal display device, and of which a decomposed product formed after irradiation with ultraviolet rays will easily be removed. A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having a bond represented by the following formula (1) in its main chain and an imidized polymer of the polyimide precursor: wherein each of R 1 , R 2 , R 3 and R 4 which are independent of one another, is a hydrogen atom or a C 1-20 monovalent hydrocarbon group which may have a substituent, and D is a protecting group to be replaced with a hydrogen atom by heat.

  提供一种液晶定向剂，以获得在液晶显示器的密封剂和基板上具有优异附着性的液晶定向膜，并且在紫外线照射后形成的分解产物易于去除。该液晶定向剂包含至少一种聚合物，所述聚合物从以下群组中选择：具有其主链中表示如下式（1）的键的聚酰亚胺前体和聚酰亚胺前体的缩合聚合物：其中，R1、R2、R3和R4各自独立地是氢原子或C1-20个单价烃基，可以具有取代基，D是保护基，可通过热被氢原子取代。
• Process of preparing unsaturated carboxylic acid amides
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0321256A2

  公开（公告）日：1989-06-21

  A process is provided for the preparation of an N-substituted unsaturated carboxylic acid amide represented by the following formula: wherein R¹ means a hydrogen atom or methyl group, Y denotes a methylene group, oxygen atom or methylimino group, m and n stand individually for an integer of 0­-5, and m + n is an integer of 3-5. The process comprises reacting a specified β-alkoxy-substituted carboxylate with a specified cyclic amine to form a β-alkoxy-substituted carboxylic acid amide compound and then removing an alcohol from the carboxylic acid amide compound in the presence of a basic catalyst to form an unsaturated group.

  本发明提供了一种制备下式所代表的 N-取代不饱和羧酸酰胺的工艺： 其中 R¹ 表示氢原子或甲基，Y 表示亚甲基、氧原子或甲基亚氨基，m 和 n 分别表示 0-5 的整数，m+n 为 3-5 的整数。该工艺包括使指定的β-烷氧基取代的羧酸酯与指定的环胺反应生成β-烷氧基取代的羧酸酰胺化合物，然后在碱性催化剂存在下从羧酸酰胺化合物中除去醇以形成不饱和基团。
• PROCESS OF MANUFACTURE OF CATALYST AND PROPYLENE POLYMER THAT USE THIS OR COPOLYMER FOR PROPYLENE POLYMERIZATION
  申请人：Hanwha Total Petrochemical Co., Ltd.

  公开号：EP3330299A1

  公开（公告）日：2018-06-06

  The present disclosure relates to a solid catalyst for propylene polymerization and a process for manufacture of a propylene polymer or copolymer using the solid catalyst, and provides a solid catalyst including carriers produced via a reaction between dialkoxy magnesium and metal halide, titanium halide, an organic electron donor, etc. and a process of manufacture of a propylene-based block copolymer via copolymerization of propylene-α-olefin using the solid catalyst. Particularly, internal electron donors including an ester group and an alkoxy group are used as two kinds of organic electron donors used in the present disclosure, and, thus, a block copolymer having high activity and excellent stereoregularity and a high rubber content via copolymerization with α-olefin can be produced using a solid catalyst system suggested in the present disclosure.

  本公开涉及一种用于丙烯聚合的固体催化剂以及使用该固体催化剂制造丙烯聚合物或共聚物的工艺，并提供了一种固体催化剂，包括通过二烷氧基镁与金属卤化物、卤化钛、有机电子供体等反应生成的载体，以及使用该固体催化剂通过丙烯-α-烯烃的共聚制造丙烯基嵌段共聚物的工艺。 特别是，本公开中使用了包括酯基和烷氧基在内的内部电子供体作为两种有机电子供体，因此，使用本公开中建议的固体催化剂体系，通过与α-烯烃共聚，可以生产出具有高活性和优异立体规整性以及高橡胶含量的嵌段共聚物。
• Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display device
  申请人：NISSAN CHEMICAL INDUSTRIES, LTD.

  公开号：US10011772B2

  公开（公告）日：2018-07-03

  To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and in the liquid crystal alignment property. A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having structural units represented by the formula (1) and structural units represented by the formula (3) and an imidized polymer of the polyimide precursor: wherein X1 and X4 are a tetravalent organic group, Y1 is a bivalent organic group having a thermally-leaving group, Y2 is a bivalent organic group, R1 and R2 are a hydrogen atom or a C1-5 alkyl group, and Z1 and Z2 are a hydrogen atom, or a C1-10 alkyl group, C2-10 alkenyl group or C2-10 alkynyl group which may have a substituent.

  提供一种液晶配向剂，以获得一种与密封剂的粘附性和液晶配向性都很好的液晶配向膜。 一种液晶配向剂含有至少一种聚合物，该聚合物选自具有式（1）和式（3）所代表结构单元的聚酰亚胺前体以及聚酰亚胺前体的亚胺化聚合物组成的组： 其中 X1 和 X4 为四价有机基团，Y1 为具有热离去基团的二价有机基团，Y2 为二价有机基团，R1 和 R2 为氢原子或 C1-5 烷基，Z1 和 Z2 为氢原子或可能具有取代基的 C1-10 烷基、C2-10 烯基或 C2-10 烷基。