9-oxo-xanthene-2,7-dicarboxylic acid | 40381-93-9

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物
• 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-oxo-xanthene-2,7-dicarboxylic acid
• 英文别名: 9-Oxo-xanthen-2,7-dicarbonsaeure；xanthone-2,7-dicarboxylic acid；Xanthon-2,7-dicarbonsaeure；9-Oxoxanthene-2,7-dicarboxylic acid
• CAS: 40381-93-9
• 化学式: C₁₅H₈O₆
• 分子量: 284.225
• InChiKey: VTHXIEPVAZPNKK-UHFFFAOYSA-N

物化性质

• 熔点：
  >300 °C
• 沸点：
  613.8±55.0 °C(Predicted)
• 密度：
  1.590±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  101
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  9-oxo-xanthene-2,7-dicarboxylic acid 生成 9-oxo-xanthene-2,7-dicarbonyl dichloride
  参考文献：
  名称：

  JONES JR. W. D.; ALBRECHT W. L.; MUNRO N. L.; STEWART K. T., J. MED. CHEM. , 1977, 20, NO 4, 594-595

  摘要：

  DOI：
• 作为产物：
  描述：

  2,7-Dimethyl-xanthen 在 chromium(VI) oxide 、 potassium dichromate 、 乙酸酐 、 溶剂黄146 作用下， 生成 9-oxo-xanthene-2,7-dicarboxylic acid
  参考文献：
  名称：

  Sengoku, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1933, vol. 53, p. 962,963; dtsch. Ref. S. 177, 178, 182

  摘要：

  DOI：

文献信息

• Pharmaceutically useful oxygen containing heterocyclic derivatives
  申请人：Richardson-Merrell Inc.

  公开号：US03953602A1

  公开（公告）日：1976-04-27

  Compounds of the following general formula are useful in the treatment of conditions of delayed hypersensitivity: ##SPC1## Wherein X represents a bond, --CH.sub.2 --, or carbonyl; Y represents a vinylene group, ##EQU1## carbonyl, oxygen, divalent sulfur, or carbonyloxy with the proviso that when Y is ##EQU2## or vinylene, X is not carbonyl; A represents a straight or branched alkylene chain of from 1 to 6 carbon atoms with the proviso that when Y is vinylene, A contains from 1 to 5 carbon atoms and with the proviso that when Y is carbonyloxy or carbonylthio, A contains from 2 to 6 carbon atoms; each of R.sup.1 and R.sup.2 represents hydrogen, a straight or branched lower alkyl group of from 1 to 4 carbon atoms; or alkenyl of 3 to 6 carbon atoms having the vinyl unsaturation in other than 1-position; and pharmaceutically acceptable acid addition salts thereof.

  以下一般公式的化合物在治疗延迟型超敏反应症状方面是有用的：##SPC1## 其中X代表键，-CH.sub.2-或羰基；Y代表乙烯基团，##EQU1## 羰基，氧，二价硫，或羰氧基，但当Y为##EQU2## 或乙烯基时，X不是羰基；A代表由1至6个碳原子的直链或支链烷基链，但当Y为乙烯基时，A含有1至5个碳原子，且当Y为羰氧基或羰硫基时，A含有2至6个碳原子；R.sup.1和R.sup.2中的每一个代表氢，由1至4个碳原子的直链或支链较低烷基基团；或具有3至6个碳原子，并且不在1-位置具有乙烯不饱和度的烯基；以及其药学上可接受的酸盐。
• 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。
• Antiviral compositions containing bis-basic esters and amides of
  申请人：Richardson-Merrell Inc.

  公开号：US03957986A1

  公开（公告）日：1976-05-18

  Novel bis-basic esters and amides of xanthene and xanthone of the formula ##SPC1## Wherein: Z is oxygen or H.sub.2 ; each of R.sup.1 and R.sup.2 is hydrogen, (lower)-alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 ring carbon atoms, alkenyl of 3 to 6 carbon atoms having the vinyl unsaturation in other than the 1-position of the alkenyl group, or each set of R.sup.1 and R.sup.2 taken together with the nitrogen atom to which they are attached is pyrrolidino, piperidino, N-(lower)alkylpiperazino, or morpholino; Each A is alkylene of 2 to about 8 carbon atoms and separates its adjacent Y and amino nitrogen by an alkylene chain of at least 2 carbon atoms; and each Y is oxygen, or >N--R wherein R is hydrogen or (lower)-alkyl of 1 to 4 carbon atoms; Or a pharmaceutically acceptable acid addition salt thereof. These compounds can be used as pharmaceuticals for preventing or inhibiting a viral infection.

  这是一种新型的黄酮和黄酮酮的双碱基酯和酰胺，化学式为##SPC1## 其中：Z为氧或H.sub.2；每个R.sup.1和R.sup.2为氢，1至6个碳原子的（较低）烷基，3至6个环碳原子的环烷基，具有烯丙基不饱和度的3至6个碳原子的烯丙基，或每组R.sup.1和R.sup.2与它们附着的氮原子一起取代为吡咯烷基，哌啶基，N-（较低）烷基哌嗪基或吗啉基；每个A为2至约8个碳原子的烷基，并通过至少2个碳原子的烷基链将其相邻的Y和氨基氮分开；每个Y为氧或>N--R，其中R为氢或1至4个碳原子的（较低）烷基；或其药学上可接受的酸盐。这些化合物可用作预防或抑制病毒感染的药物。
• AROMATIC POLYESTER
  申请人：Muroran Institute of Technology

  公开号：EP2479203A1

  公开（公告）日：2012-07-25

  The present invention provides an aromatic polyester which is substantially free from the occurrence of coloration and retains significantly high transparency even after being thermally processed at high temperature and which has high flowability. The aromatic polyester contains a polyhydric phenol residue and a residue of any one of aromatic polycarboxylic acid, halide thereof, and anhydride thereof, and terminals of the aromatic polyester have a structure represented by the formula -C(O)-R. The aromatic polyester has an end-capping rate of 90% or higher and a weight average molecular weight (Mw) ranging from 3,000 to 1,000,000.

  本发明提供了一种芳香族聚酯，该聚酯基本上不会发生着色，即使在高温热加工后仍能保持明显的高透明度，并且具有高流动性。芳香族聚酯含有多羟基苯酚残留物和芳香族多羧酸、其卤化物和其酸酐中任意一种的残留物，芳香族聚酯的端基具有式 -C(O)-R 所代表的结构。芳香族聚酯的端盖率为 90% 或更高，重量平均分子量（Mw）为 3,000 至 1,000,000 之间。
• CARR A. A.; GRUNWELL J. F.; SILL A. D.; MEYER D. R.; SWEET F. W.; SCHEVE +, J. MED. CHEM. <JMCM-AR>, 1976, 19, NO 9, 1142-1148
  作者：CARR A. A.、 GRUNWELL J. F.、 SILL A. D.、 MEYER D. R.、 SWEET F. W.、 SCHEVE +

  DOI：——

  日期：——