吡嗪-2,6-二羧酸 | 940-07-8

• 物质功能分类: 医药中间体
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 吡嗪-2,6-二羧酸
• 中文别名: 2,6-吡嗪二甲酸
• 英文名称: pyrazine-2,6-dicarboxylic acid
• 英文别名: 2,6-Ppyrazinedicarboxylic acid；pyrazine-3,5-dicarboxylic acid；Pyrazin-2,6-dicarbonsaeure；2,6-Pyrazin-dicarbonsaeure；Pyrazin-2,5-dicarbonsaeure；2,6-Pyrazindicarbonsaeure
• CAS: 940-07-8
• 化学式: C₆H₄N₂O₄
• mdl: MFCD08694102
• 分子量: 168.109
• InChiKey: CGGUNVYOABLSQD-UHFFFAOYSA-N

物化性质

• 熔点：
  225℃
• 沸点：
  491.3±45.0 °C(Predicted)
• 密度：
  1.665±0.06 g/cm3 (20 ºC 760 Torr)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  100
• 氢给体数：
  2
• 氢受体数：
  6

安全信息

• 海关编码：
  2933990090
• 危险性防范说明：
  P280,P305+P351+P338,P310
• 危险性描述：
  H302,H315,H319,H332,H335

反应信息

• 作为反应物：
  描述：

  吡嗪-2,6-二羧酸 在 草酰氯 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 为溶剂， 生成 pyrazine-2,6-dicarbonyl dichloride
  参考文献：
  名称：

  Pyrazine-functionalized calix[4]arenes: synthesis by palladium-catalyzed cross-coupling with phosphorus pronucleophiles and metal ion extraction properties

  摘要：

  通过钯催化含有氯吡嗪分子的二取代和四取代钙[4]炔的穷举交叉偶联，采用逐步官能化的方法制备了一系列吡嗪基钙[4]炔萃取剂。在类似于核废料中普遍存在的酸性进料条件下，对合成配体在氨-铀混合物中的萃取行为进行了研究。含磷吡嗪的萃取剂表现出极高的耐酸性和对镅的高亲和性，在 pH 值为 1 时，D 值高达 794。 研究了氯化钴双二碳环阴离子[(B9C2H8Cl3)2Co]-（CCD 阴离子）的协同效应，以及钙[4]炔平台与单价配体相比的效应。1 mM CCD 的存在使 D 值增加了 105 倍。

  DOI：

  10.1039/c2nj40791d
• 作为产物：
  描述：

  吡嗪-2,6-二羧酸二甲酯 在 sodium hydroxide 、 盐酸 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 1.0h， 以100%的产率得到吡嗪-2,6-二羧酸
  参考文献：
  名称：

  Pyrazine-functionalized calix[4]arenes: synthesis by palladium-catalyzed cross-coupling with phosphorus pronucleophiles and metal ion extraction properties

  摘要：

  通过钯催化含有氯吡嗪分子的二取代和四取代钙[4]炔的穷举交叉偶联，采用逐步官能化的方法制备了一系列吡嗪基钙[4]炔萃取剂。在类似于核废料中普遍存在的酸性进料条件下，对合成配体在氨-铀混合物中的萃取行为进行了研究。含磷吡嗪的萃取剂表现出极高的耐酸性和对镅的高亲和性，在 pH 值为 1 时，D 值高达 794。 研究了氯化钴双二碳环阴离子[(B9C2H8Cl3)2Co]-（CCD 阴离子）的协同效应，以及钙[4]炔平台与单价配体相比的效应。1 mM CCD 的存在使 D 值增加了 105 倍。

  DOI：

  10.1039/c2nj40791d

文献信息

• COSMETIC OR DERMATOLOGICAL COMPOSITION COMPRISING A POLYMER BEARING JUNCTION GROUPS, AND COSMETIC TREATMENT PROCESS
  申请人：Chodorowski-Kimmes Sandrine

  公开号：US20100239509A1

  公开（公告）日：2010-09-23

  The present patent application relates to a cosmetic or dermatological composition comprising, in a cosmetically or dermatologically acceptable medium, a polymer comprising: (a) a polymer backbone that may be obtained by reaction: of a polyol comprising 3 to 6 hydroxyl groups; of a monocarboxylic acid containing 6 to 32 carbon atoms; of a polycarboxylic acid comprising at least two carboxylic groups COOH, and/or of a cyclic anhydride such as a polycarboxylic acid and/or of a lactone comprising at least one carboxylic group COOH; and (b) at least one junction group linked to the said polymer backbone and capable of establishing H bonds with one or more partner junction groups, each pairing of a junction group involving at least three H (hydrogen) bonds. The patent application also concerns a cosmetic treatment process using the said composition.

  本专利申请涉及一种化妆品或皮肤科学组合物，包括在化妆品或皮肤科学上可接受的介质中，包含以下聚合物的组合物：(a) 由以下反应得到的聚合物骨架：含有3至6个羟基的多元醇；含有6至32个碳原子的一元羧酸；至少含有两个羧基COOH的多元羧酸，和/或类似多元羧酸的环酐和/或至少含有一个羧基COOH的内酯；以及(b) 至少一个连接到所述聚合物骨架的连接基团，并能够与一个或多个配对连接基团建立H键，每个连接基团的配对涉及至少三个H（氢）键。该专利申请还涉及使用所述组合物的化妆品处理过程。
• COMPOSITION COMPRISING A POLYCONDENSATE, METHOD OF TREATMENT, POLYCONDENSATE, AND METHOD OF PREPARATION
  申请人：GIUSTINIANI Pascal

  公开号：US20090028807A1

  公开（公告）日：2009-01-29

  The present application relates to a cosmetic or pharmaceutical, in particular lipstick, composition comprising a polycondensate The application also relates to a method of cosmetic treatment using the composition, the polycondensate thus defined and a method of preparing the polycondensate.

  本申请涉及一种化妆品或药用品，特别是口红，包括聚缩酸酯的组合物。该申请还涉及一种使用该组合物进行化妆处理的方法，所述聚缩酸酯的定义以及一种制备聚缩酸酯的方法。
• COSMETIC OR PHARMACEUTICAL COMPOSITION COMPRISING A POLYCONDENSATE, THE SAID POLYCONDENSATE AND METHOD OF COSMETIC TREATMENT
  申请人：Malle Gerard

  公开号：US20100272660A1

  公开（公告）日：2010-10-28

  The present application relates to a cosmetic or pharmaceutical composition comprising a polycondensate capable of being obtained by the reaction of the following monomers alone: of 10 to 30% by weight, relative to the total weight of the polycondensate, of one or more polyols comprising 3 to 6 hydroxyl groups; of 30 to 80% by weight, relative to the total weight of the polycondensate, of one or more linear, branched and/or cyclic, saturated or unsaturated, non-aromatic monocarboxylic acids comprising 6 to 32 carbon atoms; of 1 to 40% by weight, relative to the total weight of the polycondensate, of one or more polycarboxylic acids and/or cyclic anhydrides of such a polycarboxylic acid and/or lactones comprising at least one COOH group; and optionally of 0.1 to 15% by weight, relative to the total weight of the polycondensate, of one or more silicones having a hydroxyl and/or carboxyl functional group. The application also relates to a method of cosmetic treatment using the said composition, and the polycondensate thus defined.

  本申请涉及一种化妆品或药用组合物，包括由以下单体反应而得的聚缩酸酯：相对于聚缩酸酯的总重量，占10至30%的一种或多种含有3至6个羟基的多元醇；占30至80%的一种或多种线性、支链和/或环状、饱和或不饱和、非芳香族的单羧酸，含有6至32个碳原子；占聚缩酸酯总重量的1至40%的一种或多种多羧酸和/或多羧酸的环状酐和/或含有至少一个COOH基团的内酯；以及可选地占聚缩酸酯总重量的0.1至15%的一种或多种硅氧烷，具有羟基和/或羧基官能团。该申请还涉及使用所述组合物进行化妆处理的方法，以及如此定义的聚缩酸酯。
• 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。
• Chemical derivatives as antitelomerase agents which bind specifically to the G-quadruplex DNA structures and their application as a specific anticancer agent
  申请人：Hittinger Augustin

  公开号：US20070232572A1

  公开（公告）日：2007-10-04

  The present invention relates to cancer therapy and to novel anticancer agents having a mechanism of action which is quite specific. It also relates to novel chemical compounds and their therapeutic application in humans.

  本发明涉及癌症治疗以及具有相当特异作用机制的新型抗癌药物。它还涉及新型化合物及其在人类治疗中的应用。