3-nitrobenzyl bromodifluoroacetate

• 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: 3-nitrobenzyl bromodifluoroacetate
• 英文别名: (3-Nitrophenyl)methyl 2-bromo-2,2-difluoroacetate
• 化学式: C₉H₆BrF₂NO₄
• 分子量: 310.052
• InChiKey: LWYYDORQOSZDNT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-nitrobenzyl bromodifluoroacetate 在 potassium fluoride 、 copper(l) iodide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 8.0h， 以4%的产率得到1-(fluoromethyl)-3-nitrobenzene
  参考文献：
  名称：

  Novel synthesis of 2,2,2-trifluoroethyl compounds from homoallylic alcohols: a copper(I) iodide-initiated trifluoromethyl–dehydroxylation process

  摘要：

  Benzyl, prop-2-ynyl and allyl chlorodifluoroacetates 3a, bromodifluoroacetates 3b or fluorosulfonyl-difluoroacetates 3c, when decomposed in the presence of 1 equivalent of copper(I) iodide at an appropriate temperature in dimethylformamide, gave the corresponding trifluoromethyl derivatives in good to excellent yields. The products can also be obtained directly by ester exchange of XCF2CO2Et (X = FSO2, Cl, Br) 6 and the corresponding alcohols in the presence of KF and Cul. A trifluoromethylation-dehydroxylation mechanism, initiated by Cul, is proposed.

  DOI：

  10.1039/p19940000725
• 作为产物：
  描述：

  3-硝基苯甲醇 、 二氟溴乙酰氟 在 吡啶 作用下， 反应 0.17h， 以82%的产率得到3-nitrobenzyl bromodifluoroacetate
  参考文献：
  名称：

  Novel synthesis of 2,2,2-trifluoroethyl compounds from homoallylic alcohols: a copper(I) iodide-initiated trifluoromethyl–dehydroxylation process

  摘要：

  Benzyl, prop-2-ynyl and allyl chlorodifluoroacetates 3a, bromodifluoroacetates 3b or fluorosulfonyl-difluoroacetates 3c, when decomposed in the presence of 1 equivalent of copper(I) iodide at an appropriate temperature in dimethylformamide, gave the corresponding trifluoromethyl derivatives in good to excellent yields. The products can also be obtained directly by ester exchange of XCF2CO2Et (X = FSO2, Cl, Br) 6 and the corresponding alcohols in the presence of KF and Cul. A trifluoromethylation-dehydroxylation mechanism, initiated by Cul, is proposed.

  DOI：

  10.1039/p19940000725

文献信息

• Novel synthesis of 2,2,2-trifluoroethyl compounds from homoallylic alcohols: a copper(<scp>I</scp>) iodide-initiated trifluoromethyl–dehydroxylation process
  作者：Jian-Xing Duan、Qing-Yun Chen

  DOI：10.1039/p19940000725

  日期：——

  Benzyl, prop-2-ynyl and allyl chlorodifluoroacetates 3a, bromodifluoroacetates 3b or fluorosulfonyl-difluoroacetates 3c, when decomposed in the presence of 1 equivalent of copper(I) iodide at an appropriate temperature in dimethylformamide, gave the corresponding trifluoromethyl derivatives in good to excellent yields. The products can also be obtained directly by ester exchange of XCF2CO2Et (X = FSO2, Cl, Br) 6 and the corresponding alcohols in the presence of KF and Cul. A trifluoromethylation-dehydroxylation mechanism, initiated by Cul, is proposed.