4,5,5-trimethyl-2-oxofuran-3-carboxylic acid | 13156-11-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 英文名称: 4,5,5-trimethyl-2-oxofuran-3-carboxylic acid
• 英文别名: 4,5,5-Trimethyl-2-oxo-2,5-dihydrofuran-3-carboxylic acid
• CAS: 13156-11-1
• 化学式: C₈H₁₀O₄
• mdl: MFCD00995668
• 分子量: 170.165
• InChiKey: WDBWMWDAYBDTOO-UHFFFAOYSA-N

物化性质

• 熔点：
  112-113 °C
• 沸点：
  355.0±35.0 °C(Predicted)
• 密度：
  1.249±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4,5,5-trimethyl-2-oxofuran-3-carboxylic acid 以79 %的产率得到4,5,5-trimethylfuran-2(5H)-one
  参考文献：
  名称：

  [EN] SUBSTITUTED TETRAHYDROFURAN-2-CARBOXAMIDES AS MODULATORS OF SODIUM CHANNELS
  [FR] TÉTRAHYDROFURAN-2-CARBOXAMIDES SUBSTITUÉS UTILES EN TANT QUE MODULATEURS DE CANAUX SODIQUES

  摘要：

  提供了可用作钠通道抑制剂的式 I 化合物及其药学上可接受的盐。还提供了包含这些化合物或药学上可接受的盐的药物组合物，以及使用这些化合物、药学上可接受的盐和药物组合物治疗各种疾病（包括疼痛）的方法。

  公开号：

  WO2022256702A1
• 作为产物：
  描述：

  3-羟基-3-甲基-2-丁酮 在 盐酸 、 硫酸 、 水 、 sodium methylate 作用下， 以 甲醇 、 苯 为溶剂， 反应 10.0h， 生成 4,5,5-trimethyl-2-oxofuran-3-carboxylic acid
  参考文献：
  名称：

  Synthesis of novel N-aryl-2,5-dihydro-2-iminofuran-3-carboxamides and their chemical transformations

  摘要：

  Novel N-aryl-2,5-dihydro-2-iminofuran-3-carboxamides have been synthesized by condensation of tertiary alpha-hydroxyketones with N-aryl-2-cyanoacetamides. The obtained products were transformed to corresponding iminium chlorides, hydrogen sulfates, 2-oxo and 2-(dicyanomethylene) derivatives. All new compounds were characterized by NMR and IR spectral data and elemental analysis.

  DOI：

  10.1007/s00706-011-0615-2

文献信息

• [EN] SUBSTITUTED TETRAHYDROFURANS AS MODULATORS OF SODIUM CHANNELS<br/>[FR] TÉTRAHYDROFURANES SUBSTITUÉS EN TANT QUE MODULATEURS DE CANAUX SODIQUES
  申请人：VERTEX PHARMA

  公开号：WO2021113627A1

  公开（公告）日：2021-06-10

  Compounds, and pharmaceutically acceptable salts thereof, useful as inhibitors of sodium channels are provided. Also provided are pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts and methods of using the compounds, pharmaceutically acceptable salts, and pharmaceutical compositions in the treatment of various disorders, including pain.

  提供了作为钠通道抑制剂的化合物及其药用盐。还提供了包含这些化合物或药用盐的药物组合物，以及使用这些化合物、药用盐和药物组合物治疗各种疾病，包括疼痛的方法。
• Synthesis and some transformations of functionally substituted lactones
  作者：A. A. Avetisyan、A. G. Alvandzhyan、T. A. Kostanyan、M. M. Bidar

  DOI：10.1134/s1070428011060133

  日期：2011.6

  Reactions of functionally substituted unsaturated five- and six-membered cyanolactones with α- and β-hydroxy ketones in the presence of sulfuric acid gave substituted 2-oxofuran- and 2-oxopyran-3-carboxamides. Hydrolysis of some keto amides thus obtained afforded the corresponding carboxylic acids, and reactions with hydrazines and semicarbazides led to hydrazones and semicarbazones at the side-chain

  在硫酸存在下，功能取代的不饱和五元和六元氰基内酯与α-和β-羟基酮的反应生成了取代的2-氧呋喃-和2-氧吡喃-3-羧酰胺。如此获得的一些酮酰胺的水解得到相应的羧酸，并且与肼和氨基脲的反应在侧链氧代基团上产生了hydr和氨基脲。
• 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。

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