2,2-difluoro-N,2-diphenylacetamide | 339-30-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,2-difluoro-N,2-diphenylacetamide
• 英文别名: 2,2-difluoro-N-2-diphenylacetamide；difluoro-phenyl-acetic acid anilide；Difluor-phenyl-essigsaeure-anilid；N-Phenyl-alpha,alpha-difluorobenzeneacetamide
• CAS: 339-30-0
• 化学式: C₁₄H₁₁F₂NO
• 分子量: 247.244
• InChiKey: KHKBYDFFRPLOSX-UHFFFAOYSA-N

物化性质

• 熔点：
  102 °C
• 沸点：
  404.1±45.0 °C(Predicted)
• 密度：
  1.268±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2,2-二氯-2-苯基乙腈 在 sodium hydroxide 、 氯化亚砜 、 硫酸 、 三氟化锑 、 苯 作用下， 生成 2,2-difluoro-N,2-diphenylacetamide
  参考文献：
  名称：

  Jagupol'skii; Belinskaja, Zhurnal Obshchei Khimii, 1958, vol. 28, p. 772,774; engl. Ausg. S. 750, 752

  摘要：

  DOI：

文献信息

• Visible-Light-Driven Difluoroacetamidation of Unactive Arenes and Heteroarenes by Direct C–H Functionalization at Room Temperature
  作者：Lin Wang、Xiao-Jing Wei、Wen-Liang Jia、Jian-Ji Zhong、Li-Zhu Wu、Qiang Liu

  DOI：10.1021/ol502676y

  日期：2014.11.21

  The directed difluoroacetamidation of unactivated arenes and heteroarenes with bromodifluoroacetamides via visible-light photoredox catalysis has been efficiently achieved at room temperature. Broad utility of this transformation is presented, including electronically deficient heteroaromatic and aromatic systems. The mechanistic pathway of the difluoroacetamidation was discussed based on photoluminescence

  在室温下，已通过可见光光氧化还原催化有效地实现了未活化的芳烃和杂芳烃与溴二氟乙酰胺的直接二氟乙酰胺化反应。提出了这种转化的广泛用途，包括电子缺陷的杂芳族和芳族体系。基于光致发光猝灭，自旋俘获和动力学同位素效应实验，讨论了二氟乙酰胺化的机理。
• Visible Light-Induced Radical Rearrangement to Construct C–C Bonds via an Intramolecular Aryl Migration/Desulfonylation Process
  作者：Yuyuan Li、Bei Hu、Wuheng Dong、Xiaomin Xie、Jun Wan、Zhaoguo Zhang

  DOI：10.1021/acs.joc.6b00735

  日期：2016.8.19

  A highly efficient intramolecular selective aryl migration/desulfonylation of 2-bromo-N-aryl-N-(arenesulfonyl)amide via visible light-induced photoredox catalysis has been accomplished. This approach allows for the construction of a variety of multisubstituted N,2-diarylacetamide under mild reaction conditions.

  A高效分子内选择性的2-溴芳基迁移/脱磺酰ñ -芳基- ñ - （芳烃磺酰基）酰胺通过可见光诱导photoredox催化已经完成。该方法允许在温和的反应条件下构建多种多取代的N，2-二芳基乙酰胺。
• Nickel-Catalyzed Cross-Coupling of Functionalized Difluoromethyl Bromides and Chlorides with Aryl Boronic Acids: A General Method for Difluoroalkylated Arenes
  作者：Yu-Lan Xiao、Wen-Hao Guo、Guo-Zhen He、Qiang Pan、Xingang Zhang

  DOI：10.1002/anie.201405653

  日期：2014.9.8

  Transition‐metal‐catalyzed difluoroalkylation of aromatics remains challenging despite the importance of difluoroalkylated arenes in medicinal chemistry. Herein, the first successful example of nickel‐catalyzed difluoroalkylation of aryl boronic acids is described. The reaction allows access to a variety of functionalized difluoromethyl bromides and chlorides, and paves the way to highly cost‐efficient

  尽管二氟烷基化芳烃在药物化学中非常重要，但过渡金属催化的芳烃二氟烷基化仍具有挑战性。本文描述了第一个成功的芳基硼酸镍催化二氟烷基化反应的例子。该反应允许获得各种功能化的二氟甲基溴化物和氯化物，并为高成本效益地合成各种二氟烷基化芳烃铺平了道路。该协议的显着特点是它的通用性强，出色的功能基团相容性，低成本的镍催化剂以及克级生产的实用性，从而为药物发现和开发中的应用提供了一种简便的方法。
• Preparation of (Phenyldifluoromethyl)- and (Phenoxydifluoromethyl)-silanes by Magnesium-Promoted Carbon-Chlorine Bond Activation
  作者：Claude Wakselman、Jérôme Guidotti、François Metz、Marc Tordeux

  DOI：10.1055/s-2004-829533

  日期：——

  Treatment of α-chloro-α,α-difluorotoluene and α-chloro-α,α-difluoroanisole with chlorotrimethylsilane in the presence of magnesium in DMF led to their corresponding trimethylsilyl derivatives. These compounds are able to transfer their fluorinated group to various electrophilic substrates (carbonyl compounds, disulfides, phenyl isocyanate).

  在 DMF 中，在镁的存在下，用三甲基氯硅烷处理δ-氯δ,δ-二氟甲苯和δ-氯δ,δ-二氟苯甲醚，可得到相应的三甲基硅烷衍生物。这些化合物能够将其氟化基转移到各种亲电基质（羰基化合物、二硫化物、苯基异氰酸酯）上。
• Nickel-Catalyzed Negishi Cross-Coupling of Bromodifluoroacetamides
  作者：Atsushi Tarui、Saori Shinohara、Kazuyuki Sato、Masaaki Omote、Akira Ando

  DOI：10.1021/acs.orglett.6b00232

  日期：2016.3.4

  A nickel-catalyzed Negishi coupling of bromodifluoroacetamides with arylzinc reagents has been developed. This reaction allows access to difluoromethylated aromatic compounds containing a variety of aryl groups and amide moieties. Furthermore, highly effective transformation of the functionalized difluoromethyl group (-(CF2CONRR2)-R-1) was realized via microwave-assisted reduction under mild conditions. The notable features of this strategy are its generality and its use of a low-cost nickel catalyst and ligand; thus, this reaction provides a facile method for applications in drug discovery and development.