3,3-difluoro-1-methylindolin-2-one | 73789-91-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 3,3-difluoro-1-methylindolin-2-one
• 英文别名: 1-Methyl-3,3-difluoroindoline-2-one；3,3-difluoro-1-methylindol-2-one
• CAS: 73789-91-0
• 化学式: C₉H₇F₂NO
• 分子量: 183.157
• InChiKey: GPPUNJSDGNZHOL-UHFFFAOYSA-N

物化性质

• 熔点：
  89-90 °C
• 沸点：
  288.3±40.0 °C(Predicted)
• 密度：
  1.35±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,3-difluoro-1-methylindolin-2-one 在 BFH₂*THF 作用下， 以 四氢呋喃 为溶剂， 以90%的产率得到1-methyl-3-fluoro-1H-indole
  参考文献：
  名称：

  A synthesis of 3-fluoroindoles and 3,3-difluoroindolines by reduction of 3,3-difluoro-2-oxindoles using a borane tetrahydrofuran complex

  摘要：

  A borane tetrahydrofuran complex has been used to study the reduction of 3,3-difluoro-2-oxindoles and been found to yield either 3-fluoroindoles or 3,3-difluoroindolines. The latter have been found to be reasonably stable when the aromatic nucleus is substituted with an electron withdrawing group and are in these cases the predominant product. The efficient synthesis of the former occurs by elimination of HF in the presence of silica from the latter. The 3,3-difluoro-2-oxindoles were prepared by the reaction of appropriately substituted isatin derivatives with DAST. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(98)01229-0
• 作为产物：
  描述：

  1-methyl-1H-indole-2,3-dione 3-hydrazone 在 Selectfluor 作用下， 以 乙腈 为溶剂， 反应 12.0h， 以44%的产率得到3,3-difluoro-1-methylindolin-2-one
  参考文献：
  名称：

  Solvent Effects: Syntheses of 3,3-Difluorooxindoles and 3-Fluorooxindoles from Hydrazonoindolin-2-one by Selectfluor

  摘要：

  Efficient syntheses of 3,3-difluorooxindoles and 3-fluorooxindoles via fluorination of hydrazonoindolin-2-one with Selectfluor are reported. Under different solvent conditions, this method produced 3,3-difluorooxindoles and 3-fluorooxindoles selectively. The broad substrate scope and mild reaction conditions make this transformation a valuable method in drug discovery and development.

  DOI：

  10.1021/acs.joc.8b00737

文献信息

• 4-(Benzoimidazol-2-yl)-thiazole Compounds and Related Aza Derivatives
  申请人：Actelion Pharmaceuticals Ltd.

  公开号：US20140371204A1

  公开（公告）日：2014-12-18

  The invention relates to compounds of Formula (I) wherein ring A, X, (R 1 ) n , R 2 , R 3 , R 4 , R 4′ , R 5 , n, and p are as described in the description; to pharmaceutically acceptable salts thereof, and to the use of such compounds as medicaments, especially as modulators of the CXCR3 receptor.

  本发明涉及式(I)化合物，其中环A、X、(R1)n、R2、R3、R4、R4′、R5、n和p如描述中所述；涉及药用可接受的盐，以及将此类化合物用作药物，尤其是用作CXCR3受体的调节剂。
• [EN] QUINAZOLINONE COMPOUNDS AND DERIVATIVES THEREOF<br/>[FR] COMPOSÉS QUINAZOLINONES ET LEURS DÉRIVÉS
  申请人：AMGEN INC

  公开号：WO2014036022A1

  公开（公告）日：2014-03-06

  Compounds of Formula I are useful inhibitors of tankyrase. Compounds of Formula I have the following structure: where the definitions of the variables are provided herein.

  公式I的化合物是坦克酶的有用抑制剂。公式I的化合物具有以下结构：其中变量的定义在此提供。
• Palladium-Catalyzed Intramolecular CH Difluoroalkylation: Synthesis of Substituted 3,3-Difluoro-2-oxindoles
  作者：Shi-Liang Shi、Stephen L. Buchwald

  DOI：10.1002/anie.201410471

  日期：2015.1.26

  3‐difluoro‐2‐oxindoles through a robust and efficient palladium‐catalyzed CH difluoroalkylation is described. This process generates a broad range of difluorooxindoles from readily prepared starting materials. The use of BrettPhos as the ligand was crucial for high efficiency. Preliminary mechanistic studies suggest that oxidative addition is the rate‐determining step for this process.

  描述了通过稳健而有效的钯催化的CH二氟烷基化反应合成3,3-二氟-2-氧吲哚的方法。该方法从容易制备的起始原料中产生了广泛范围的二氟羟吲哚。使用BrettPhos作为配体对于提高效率至关重要。初步的机理研究表明，氧化添加是该过程的决定速率的步骤。
• Copper/B₂pin₂-catalyzed C–H difluoroacetylation–cycloamidation of anilines leading to the formation of 3,3-difluoro-2-oxindoles
  作者：Miaolin Ke、Qiuling Song

  DOI：10.1039/c6cc09643c

  日期：——

  An original and efficient synthesis of 3,3-difluoro-2-oxindole derivatives has been developed via copper/B₂pin₂-catalyzed difluoroacetylation of aniline via C–H activation followed by intramolecular amidation.

  已经开发出一种原创且高效的合成方法，通过铜/B₂pin₂催化的苯胺二氟乙酰化反应，通过C-H活化后接着进行分子内酰胺化，合成了3,3-二氟-2-氧吲哚衍生物。
• <scp>4‐Dimethylaminopyridine‐Boryl</scp> Radical Promoted Monodefluorinative Alkylation of 3, <scp>3‐Difluorooxindoles</scp>
  作者：Tesfaye Tebeka Simur、Fentahun Wondu Dagnaw、You‐Jie Yu、Feng‐Lian Zhang、Yi‐Feng Wang

  DOI：10.1002/cjoc.202100784

  日期：2022.3

  A selective monodefluorinative alkylation of 3,3-difluorooxindoles is achieved. The reaction starts by the attack of a 4-dimethylaminopyrine-boryl radical to the carbonyl oxygen atom of 3,3-difluorooxindoles, followed by a spin-center shift to generate radical intermediates with the elimination of a fluoride anion. The subsequent radical addition to alkenes affords a range of 3-alkyl-fluorooxindoles

  实现了 3,3-二氟羟吲哚的选择性单脱氟烷基化。该反应开始于 4-二甲基氨基吡啶-硼基自由基对 3,3-二氟羟吲哚的羰基氧原子的攻击，随后自旋中心位移生成自由基中间体，同时消除了一个氟阴离子。随后对烯烃进行自由基加成，得到一系列 3-烷基-氟羟吲哚产物。该策略提供了获得具有广泛底物范围并耐受多种官能团的 C-3 官能化羟吲哚的途径。