1,1,2,2-Tetracarboxy-cyclobutan

• 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: 1,1,2,2-Tetracarboxy-cyclobutan
• 英文别名: cyclobutane-1,1,2,2-tetracarboxylic acid；Cyclobutan-1,1,2,2-tetracarbonsaeure；Cyclobutanetetracarboxylic
• 化学式: C₈H₈O₈
• 分子量: 232.147
• InChiKey: DKXPPORBGHZJHX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  149
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  1,1,2,2-Tetracarboxy-cyclobutan 生成 cis-1,2-cyclobutane dicarboxylic anhydride
  参考文献：
  名称：

  CXCIX.—某些二溴四羧酸酯对丙二酸乙酯，乙基四羧酸乙酯和类似物质的钠衍生物的作用

  摘要：

  DOI：

  10.1039/jr9280001513
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 乙醚 、 乙醇 、 sodium 作用下， 生成 1,1,2,2-Tetracarboxy-cyclobutan
  参考文献：
  名称：

  Perkin, Journal of the Chemical Society, 1894, vol. 65, p. 580

  摘要：

  DOI：

文献信息

• Diamine Compound Having Phosphorylcholine Group, Polymer Thereof, and Process for Producing the Polymer
  申请人：Nagase Yu

  公开号：US20100036081A1

  公开（公告）日：2010-02-11

  Highly polymerizable diamine compounds having a phosphorylcholine group are disclosed. High-molecular weight polymers are obtained from the highly polymerizable diamine compound having a phosphorylcholine group as a monomer, and the polymers have improved mechanical strength, water resistance and heat resistance while maintaining excellent biocompatibility and processability of MPC polymers. Processes for producing the polymers are disclosed. The diamine compounds having a phosphorylcholine group are represented by Formula (I). The polymers contain at least 1 mol % of a specific structural unit with a phosphorylcholine group represented by Formula (II) and have a number average molecular weight of not less than 5,000. In the processes, the diamine compound is used as a monomer.

  具有磷酰胆碱基团的高聚合性二胺化合物被披露。从具有磷酰胆碱基团的高聚合性二胺化合物作为单体得到高分子量聚合物，这些聚合物具有改善的机械强度、耐水性和耐热性，同时保持MPC聚合物的优异生物相容性和加工性。披露了生产这些聚合物的方法。具有磷酰胆碱基团的二胺化合物由式(I)表示。这些聚合物含有至少1摩尔％的由式(II)表示的具有磷酰胆碱基团的特定结构单元，并且具有不低于5,000的数均分子量。在这些方法中，二胺化合物被用作单体。
• Compound having silsesquioxane skeleton and its polymer
  申请人：Inagaki Jyun-ichi

  公开号：US20050009982A1

  公开（公告）日：2005-01-13

  The present invention relates to 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, and 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, A 1 to A 4 are independently a single bond, 1,4-cyclohexylene, 1,4-cyclohexenylene, a condensed ring group having 6 to 10 carbon atoms which is a divalent group, or 1,4-phenylene, Z 0 to Z 3 are independently a single bond, —CH═CR—, —C≡C—, —COO—, —OCO—, or alkylene having 1 to 20 carbon atoms, and Z 4 is a single bond, —CH═CH—, —C≡C—, —COO—, —OCO—, or alkylene having 1 to 20 carbon atoms. And Y 1 in Formula (1) is the group defined in Claim 1.

  本发明涉及一种由式（1）表示的化合物和使用该化合物获得的聚合物：其中R1是苯基，可能具有取代基；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、环己基、环己烯基或苯基，其中可选的氢原子可被卤素或具有1至5个碳原子的烷基取代；Q2是由式（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独立地为单键、1,4-环己亚基、1,4-环己烯亚基、具有6至10个碳原子的缩合环基团，为二价基团，或1,4-苯亚基，Z0至Z3独立地为单键、—CH═CR—、—C≡C—、—COO—、—OCO—或具有1至20个碳原子的烷基，Z4为单键、—CH═CH—、—C≡C—、—COO—、—OCO—或具有1至20个碳原子的烷基。式（1）中的Y1是权利要求1中定义的基团。
• COMPOSITION CONTAINING VINYL-GROUP-CONTAINING COMPOUND
  申请人：TOKYO OHKA KOGYO CO., LTD.

  公开号：US20160046552A1

  公开（公告）日：2016-02-18

  A composition containing a novel vinyl-group-containing compound. This composition contains a vinyl-group-containing compound represented by general formula (1). In the formula: W 1 and W 2 represent a group represented by general formula (2) (where a ring (Z) is an aromatic hydrocarbon ring, X is a single bond or —S—, R 1 is a single bond or a C1-4 alkylene group, R 2 is a specific substituent group such as a monovalent hydrocarbon, and m is an integer equal to 0 or higher), a group represented by general formula (4) (where the ring (Z), X, R 1 , R 2 , and m are as previously stated), a hydroxyl group, or a (meth)acryloyloxy group; rings (Y 1 , Y 2 ) are aromatic hydrocarbon rings; R represents a single bond or a specific divalent group; R 3a and R 3b represent a cyano group, a halogen atom, or a monovalent hydrocarbon group; and n1 and n2 are integers of 0-4.

  这个组合物包含一种含有新颖乙烯基团的化合物。该组合物包含一个由通式（1）表示的含有乙烯基团的化合物。在该式中：W1和W2代表由通式（2）表示的一个基团（其中环（Z）是芳香烃环，X是一个单键或—S—，R1是一个单键或C1-4烷基基团，R2是特定的取代基团，如一价碳氢化合物，m是大于或等于0的整数），一个由通式（4）表示的基团（其中环（Z）、X、R1、R2和m如前述），一个羟基，或一个（甲基）丙烯酰氧基团；环（Y1、Y2）是芳香烃环；R代表一个单键或一个特定的二价基团；R3a和R3b代表氰基、卤素原子或一价碳氢基团；n1和n2是0-4的整数。
• Colorant compounds
  申请人：Banning H. Jeffrey

  公开号：US20060020141A1

  公开（公告）日：2006-01-26

  Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +y wherein y is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromogen moieties, or (2) a metal-containing moiety capable of forming a compound with at least two chromogen moieties, z is an integer representing the number of chromogen moieties associated with the metal and is at least 2, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , a, b, c, d, Y, and z are as defined herein, Q − is a COO − group or a SO 3 — group, A is an organic anion, and CA is either a hydrogen atom or a cation associated with all but one of the Q − groups.

  式中的化合物，其中M是一个带有正电荷+y的金属离子，其中y是至少为2的整数，该金属离子能够与至少两个色团基团形成化合物，或者M是一个含金属基团的基团，能够与至少两个色团基团形成化合物，z是表示与金属相关的色团基团数量的整数，至少为2，R1、R2、R3、R4、R5、R6、R7、a、b、c、d、Y和z的定义如上所述，Q-是一个COO-基团或SO3-基团，A是一个有机阴离子，CA是一个氢原子或与除一个Q-基团之外的所有Q-基团相关联的阳离子。
• Inkjet ink
  申请人：Satou Hiroyuki

  公开号：US20080085361A1

  公开（公告）日：2008-04-10

  The invention relates to a method for manufacturing an inkjet ink including a polyamic acid (A), including a step of at least reacting one or more compounds selected from the group of a monoamine (a3) and a compound having one acid anhydride group (a4) with a compound having two or more acid anhydride groups (a1) and a diamine (a2).

  该发明涉及一种制造喷墨墨水的方法，包括至少将来自单胺（a3）和具有一个酸酐基团（a4）的化合物组合的群体中选择的一个或多个化合物与具有两个或更多酸酐基团（a1）和二胺（a2）反应的聚酰胺酸（A）。