1-(3-nitrophenyl)-3,3-difluoropropyne

• 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: 1-(3-nitrophenyl)-3,3-difluoropropyne
• 英文别名: 1-(3,3-difluoroprop-1-yn-1-yl)-3-nitrobenzene；1-(3,3-Difluoroprop-1-ynyl)-3-nitrobenzene；1-(3,3-difluoroprop-1-ynyl)-3-nitrobenzene
• 化学式: C₉H₅F₂NO₂
• 分子量: 197.141
• InChiKey: WNCYTDXVFRERDQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  45.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-硝基苯乙炔 在 N-溴代丁二酰亚胺(NBS) 、 copper(l) iodide 、 silver nitrate 作用下， 以 二甲基亚砜 、 丙酮 为溶剂， 反应 12.17h， 生成 1-(3-nitrophenyl)-3,3-difluoropropyne
  参考文献：
  名称：

  Oxidant- and Base-Free, Copper-Catalyzed Difluoromethylation of Haloalkynes

  摘要：

  DOI：

  10.1021/acs.orglett.3c03198

文献信息

• Facile syntheses of various per- or polyfluoroalkylated internal acetylene derivatives
  作者：Tsutomu Konno、Jungha Chae、Masashi Kanda、Go Nagai、Kazushige Tamura、Takashi Ishihara、Hiroki Yamanaka

  DOI：10.1016/s0040-4020(03)01199-2

  日期：2003.9

  Treatment of per- or polyfluoroalkylated vinyl iodides 5 with 2 equiv. of n-BuLi in THF produced the corresponding lithium acetylides in situ, which were transformed into zinc acetylides by the addition of ZnCl2.TMEDA complex into the reaction mixture. The in situ generated zinc acetylides were exposed to the cross-coupling conditions such as ArI/cat. Pd(PPh3)(4), reflux, 6-12 h, giving rise to the desired per- or polyfluoroalkylated acetylenes in high yields. In the case of trifluoromethylated acetylene, commercially available 2-bromo-3,3,3-trifluoropropene 6 could also be used instead of 5 as the starting material. In the acetylenes having a fluoroalkyl group and an aliphatic side chain, vinyl iodides 7, prepared by radical addition of perfluoroalkyl iodide to terminal acetylenes, were treated with t-BuOK at room temperature or at the reflux temperature of benzene, affording the desired compounds in good yields. (C) 2003 Elsevier Ltd. All rights reserved.