4,4'-Dimethylbiphenyl-3,3'-dicarbonsaeure

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4,4'-Dimethylbiphenyl-3,3'-dicarbonsaeure
• 英文别名: 5-(3-Carboxy-4-methylphenyl)-2-methylbenzoic acid
• 化学式: C₁₆H₁₄O₄
• 分子量: 270.285
• InChiKey: DQDGWKOSLKGRQP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  邻甲基苯甲酸甲酯 在 palladium diacetate 、 1,10-菲罗啉 、 copper diacetate sodium hydroxide 、 air 作用下， 以 正丁醇 为溶剂， 反应 9.0h， 生成 4,4'-Dimethylbiphenyl-3,3'-dicarbonsaeure
  参考文献：
  名称：

  Shiotani, Akinori, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1994, vol. 49, # 12, p. 1731 - 1736

  摘要：

  DOI：

文献信息

• MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
  申请人：TABATA Masayoshi

  公开号：US20110224343A1

  公开（公告）日：2011-09-15

  The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W 1 x —Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): and monovalent residues represented by Formula (IV): —O—C(O)—R 7 —.

  本发明提供了一种用于芳香族聚酯的改性剂，可以增强芳香族聚酯的熔融流动性，而不明显降低芳香族聚酯的耐热性，以及包括该改性剂的芳香族聚酯树脂组合物。本发明涉及一种用于芳香族聚酯的改性剂，包括多羟基酚残基和芳香族多羧酸、酸卤或其酸酐残基，该改性剂包括具有以下结构的材料：第一残基，选择自由式(I)所代表的二价残基：—Ar—W1x—Ar—和自由式(II)所代表的：—Ar—，第一残基与选择自由式(III)所代表的单价残基：和自由式(IV)所代表的单价残基：—O—C(O)—R7—的两个相同或不同的第二残基结合。
• ANION-EXCHANGE DISPLACEMENT CHROMATOGRAPHY PROCESS AND ANIONIC ORGANIC COMPOUNDS FOR USE AS DISPLACER COMPOUNDS IN ANION-EXCHANGE DISPLACEMENT CHROMATOGRAPHY PROCESS
  申请人：Little Charles

  公开号：US20070125712A1

  公开（公告）日：2007-06-07

  A displacement chromatography process, including: loading onto a stationary phase comprising an anion-exchange material a mixture comprising one or more component to be separated; displacing at least one of the one or more component from the stationary phase by applying to the stationary phase a mixture comprising an polyaromatic polyanionic displacer compound having a general formula Cen (Ar) w , in which Cen is a central bond or group, Ar is an aromatic nucleus, w=2 to the maximum number of sites one Cen, and Ar is substituted with a plurality of An − , in which each An − is independently defined as sulfonate, carboxylate, phosphonate, phosphate, sulfate; and Ar is further substituted with a plurality of G, in which G is defined as independently H, C 1 -C 6 alkyl, halogen, nitro, hydroxy, C 1 -C 6 alkoxy In addition, a group of polyaromatic polyanionic displacer compounds useful in the process is disclosed.

  一种位移层析过程，包括：将待分离的一个或多个组分的混合物加载到包含一种阴离子交换材料的静态相中；通过施加一种由聚芳香族聚阴离子位移剂化合物组成的混合物，其中该位移剂化合物具有通式Cen（Ar）w，其中Cen是中心键或基团，Ar是芳香族核，w为2到Cen上最大位点数，Ar被多个An-取代，其中每个An-独立定义为磺酸盐，羧酸盐，膦酸盐，磷酸盐，硫酸盐；并且Ar还被多个G取代，其中G被定义为独立的H，C1-C6烷基，卤素，硝基，羟基，C1-C6烷氧基。此外，还公开了一组在该过程中有用的聚芳香族聚阴离子位移剂化合物。
• Verification of translation
  申请人：Inagaki Jyun-ichi

  公开号：US20070190344A1

  公开（公告）日：2007-08-16

  A compound represented by Formula (1) and a polymer obtained using the compound: wherein R 1 is phenyl which may have substituents, Q 1 is hydrogen, halogen, alkyl having 1 to 10 carbon atoms, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclohexenyl or phenyl in which optional hydrogen may be replaced by halogen or alkyl having 1 to 5 carbon atoms, Q 2 is a group represented by Formula (2): wherein the code < represents a bonding point with silicon, l, m, n and p are independently 0, 1, 2 or 3, and A 1 to A 4 , Z 0 to Z 4 and Y 1 are defined in the specification.

  公式（1）所表示的化合物和使用该化合物制得的聚合物：其中R1是苯基，可以有取代基；Q1是氢、卤素、具有1至10个碳原子的烷基、环丙基、环丁基、环戊基、环己烯基或苯基，其中可选氢原子可以被卤素或具有1至5个碳原子的烷基所取代；Q2是由公式（2）表示的基团：其中代码<表示与硅的连接点，l、m、n和p独立地为0、1、2或3，A1至A4、Z0至Z4和Y1在规范中有定义。
• METHOD OF PRODUCING 3,4,3',4'-SUBSTITUTED BIPHENYL COMPOUNDS
  申请人：UBE INDUSTRIES, LTD.

  公开号：EP0439616A1

  公开（公告）日：1991-08-07

  A 3,4,3'4'-substituted biphenyl compound represented by the general formula (II): wherein, one of R¹ and R² is a -CH₃ group and the one other is a -COOR⁵ group, -COOH group, or -COCl group, and one of R³ and R⁴ is a -CH₃ group and the other one is a -COOR⁵ group, -COOH group, or -COCl group, is produced by the steps of oxidatively coupling an o-toluic acid alkyl ester in the presence of a catalyst containing a mixture of palladium salts with 1,10-phenanthroline or α,α'-bipyridine, a chelating product of a palladium salt with 1,10-phenanthroline, or a chelating products of a palladium salt with α,α'-bipyridine, in an atmosphere containing molecular oxygen, to selectively produce a 3,4,3',4'-substituted dimethyl biphenyl dicarboxylic acid dialkyl esters having a biphenyl ring structure; optionally converting this dialkyl ester compound to a corresponding dimethyl biphenyl dicarboxylic acid, and then optionally further converting this to a corresponding dimethyl biphenyl dicarboxylic acid dichloride.

  通式(II)代表的 3,4,3'4'-取代联苯化合物： 其中，R¹ 和 R² 中的一个是-CH₃基团，另一个是-COOR⁵基团、-COOH 基团或-COCl 基团；R³ 和 R⁴ 中的一个是-CH₃基团，另一个是-COOR⁵基团、-COOH基团或-COCl基团，是通过以下步骤制得的：在含有钯盐混合物的催化剂存在下，将邻甲基苯甲酸烷基酯与1、10-菲罗啉或 α,α'-联吡啶的混合物、钯盐与 1,10-菲罗啉的螯合产物、或钯盐与 α,α'-联吡啶的螯合产物的催化剂存在下，在含有分子氧的气氛中，氧化偶联邻 甲苯甲酸烷基酯，选择性地生成具有联苯环结构的 3,4,3',4'-取代二甲基联苯二 羧酸二烷基酯；选择性地将这种二烷基酯化合物转化为相应的二甲基联苯二甲酸，然后选择性地进一步将其转化为相应的二甲基联苯二甲酸二氯化物。
• INSULATED WIRE
  申请人：THE FURUKAWA ELECTRIC CO., LTD.

  公开号：EP0977209A1

  公开（公告）日：2000-02-02

  There is disclosed an insulated wire, which comprises at least one insulating layer toned by applying and baking, directly or via another insulating layer on a conductor, a resin composition containing at least one selected from the group consisting of a polyamidimide resin and a polyimide resin, each having, in the molecular structure of the resin, a structure represented by formula (I), and/or a resin composition containing at least one selected from the group consisting of a polyamidimide resin and a polyimide resin, each having, in the molecular structure of the resin, a structure represented by formula (II), and said insulated wire has 0.2% yield stress of not more than 110 Mpa. This insulated wire, even if its insulation coating is made thinner, is excellent in resistance to scratches, and it is able to prevent the coating from breakage at the time of coil working, especially of the insertion of a coil into a stator slot, under rigorous conditions. In the formulae, R1, R2, R3, and R4, each are a hydrogen atom, an alkyl group, a hydroxyl group, a halogen atom, or an alkoxy group.

  本发明公开了一种绝缘电线，该电线包括至少一个绝缘层，该绝缘层是通过在导体上直接或通过另一个绝缘层涂敷和烘烤而调色的，该绝缘层是一种树脂组合物，该树脂组合物含有至少一种选自由聚酰胺酰亚胺树脂和聚酰亚胺树脂组成的组中的一种，每种树脂的分子结构中都具有式（I）所代表的结构，和/或一种树脂组合物，该树脂组合物含有至少一种选自由聚酰胺酰亚胺树脂和聚酰亚胺树脂组成的组中的一种，每种树脂的分子结构中都具有式（I）所代表的结构、或含有至少一种选自聚酰胺酰亚胺树脂和聚酰亚胺树脂组成的组的树脂组合物，每种树脂的分子结构均具有式 (II) 所表示的结构，且所述绝缘线具有 0.2% 的屈服应力不超过 110 兆帕。这种绝缘导线即使绝缘层变薄，也具有极佳的抗划伤能力，在线圈工作时，特别是在将线圈插入定子槽中的严格条件下，能够防止绝缘层破损。 式中，R1、R2、R3 和 R4 各为氢原子、烷基、羟基、卤素原子或烷氧基。