9-dicarboxymethylxanthene | 101278-43-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 9-dicarboxymethylxanthene
• 英文别名: xanthen-9-yl-malonic acid；Xanthen-9-yl-malonsaeure；2-(9h-Xanthen-9-yl)-malonic acid；2-(9H-xanthen-9-yl)propanedioic acid
• CAS: 101278-43-7
• 化学式: C₁₆H₁₂O₅
• 分子量: 284.268
• InChiKey: DAGVVNNXSVDEPY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  83.8
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 海关编码：
  2932999099

反应信息

• 作为反应物：
  描述：

  9-dicarboxymethylxanthene 以 N-甲基吡咯烷酮 为溶剂， 反应 1.0h， 以88%的产率得到(9H-氧杂蒽-9-基)-乙酸
  参考文献：
  名称：

  Discovery of novel non-peptidic β-alanine piperazine amide derivatives and their optimization to achiral, easily accessible, potent and selective somatostatin sst1 receptor antagonists

  摘要：

  Structural simplification of the core moieties of obeline and ergoline somatostatin sst(1) receptor antagonists, followed by systematic optimization, led to the identification of novel, highly potent and selective sst(1) receptor antagonists. These achiral, non-peptidic compounds are easily prepared and show promising PK properties in rodents. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2009.01.072
• 作为产物：
  描述：

  占吨酮 在 sodium amalgam 、 乙醇 、 溶剂黄146 作用下， 生成 9-dicarboxymethylxanthene
  参考文献：
  名称：

  972.源自黄原胶的解痉药

  摘要：

  DOI：

  10.1039/jr9570004823

文献信息

• Manganese(III)-Mediated Formylation of Aromatic Compounds in the Presence of Malonic Acid
  作者：Hiroshi Nishino、Katsunori Tsunoda、Kazu Kurosawa

  DOI：10.1246/bcsj.62.545

  日期：1989.2

  the presence of manganese(III) acetate gives naphthalenecarbaldehydes and naphthalenecarboxylic acids. Similar reactions of anthracene, pyrene, and methoxybenzenes also yield formylated and carboxylated products. It was found that the formyl group introduced to the aromatic ring was not derived from carboxymethyl radical generated directly by the thermolysis of manganese(III) acetate, but from a dicarboxymethyl

  在乙酸锰 (III) 存在下，萘与丙二酸反应生成萘甲醛和萘甲酸。蒽、芘和甲氧基苯的类似反应也产生甲酰化和羧化产物。发现引入芳环的甲酰基不是由乙酸锰（III）热解直接产生的羧甲基自由基衍生而来，而是由丙二酸和乙酸锰（III）相互作用形成的二羧甲基自由基衍生而来。此外，还发现二羧甲基自由基攻击芳环上电子密度最高的位置，当芳族化合物的电离电位低于7.8 eV时，这种甲酰化是有效的。
• Image making medium
  申请人：——

  公开号：US20030035917A1

  公开（公告）日：2003-02-20

  The invention relates to an image support medium for creation of an aesthetic image that is an work or object for display. This support medium includes a polymer in an amount sufficient to enable the image to have at least one aesthetic element. In different embodiments, the image support medium is an image support stabilizer, the polymer is a synthetic absorbent or conductive polymer, or the polymer is a transparent or synthetic translucent polymer and a property of this transparent or translucent polymer is enhanced to facilitate the creation or preservation of the image by at least one stabilizer. The invention also relates to a method for preparing this image support medium. The method includes forming a reaction mixture comprising a monomer in an amount sufficient to provide or enable the image to have an aesthetic element, and processing the reaction mixture into a 2- or 3-dimensional shape.

  本发明涉及一种图像支持介质，用于创建作为作品或展示对象的美学图像。这种支撑介质包括一种聚合物，其用量足以使图像具有至少一种审美元素。在不同的实施例中，图像支持介质是一种图像支持稳定剂，聚合物是一种合成的吸收性或导电性聚合物，或者聚合物是一种透明或合成的半透明聚合物，并且这种透明或半透明聚合物的特性被至少一种稳定剂增强，以促进图像的创建或保存。本发明还涉及一种制备这种图像支持介质的方法。该方法包括形成由单体组成的反应混合物，其用量足以提供或使图像具有美学元素，并将反应混合物加工成 2 维或 3 维形状。
• Manganese(III)-mediated carbon-carbon bond formation in the reaction of xanthenes with active methylene compounds
  作者：Hiroshi Nishino、Hironori Kamachi、Harumi Baba、Kazu Kurosawa

  DOI：10.1021/jo00039a010

  日期：1992.6

  Oxidation of xanthenes with manganese(III) acetate in the presence of active methylene compounds such as 1,3-dicarbonyl compounds, malononitrile derivatives, acetone, and nitromethane selectively gives 9-substituted xanthene derivatives in good yields. A similar oxidation of thioxanthene also yields 2-(9-thioxanthenyl)-1,3-dicarbonyl compounds in 57-91% yields. The obtained 2-(9-xanthenyl)-1,3-dicarbonyl compounds are readily converted to 2-(9-xanthenylidene)-1,3-dicarbonyl derivatives using manganese(III) complexes or 2,3-dichloro-5, 6-dicyano-1,4-benzoquinone. The mechanisms for the formation of 9-substituted xanthenes are discussed on the basis of the reaction of intermediates, the electron-donating substituent effect on the xanthene ring system, effect of additives, and comparison with a reaction of radical-trapping reagents.
• Fosse, Bulletin de la Societe Chimique de France, 1906, vol. <3> 35, p. 1005
  作者：Fosse

  DOI：——

  日期：——
• Fosse, Annales de Chimie (Cachan, France), 1920, vol. <9> 13, p. 106
  作者：Fosse

  DOI：——

  日期：——