1-(2,2-二氟-1-苯基乙烯基)-3-(三氟甲基)苯 | 1010720-57-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-(2,2-二氟-1-苯基乙烯基)-3-(三氟甲基)苯
• 英文名称: 1-(2,2-difluoro-1-phenylvinyl)-3-(trifluoromethyl)benzene
• 英文别名: 1-(2,2-Difluoro-1-phenylethenyl)-3-(trifluoromethyl)benzene；1-(2,2-difluoro-1-phenylethenyl)-3-(trifluoromethyl)benzene
• CAS: 1010720-57-6
• 化学式: C₁₅H₉F₅
• 分子量: 284.228
• InChiKey: WACOULLOGJHRDE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  1-(2,2-二氟-1-苯基乙烯基)-3-(三氟甲基)苯 、 4-isopropyl-2,6-dimethyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester 在 fac-tris(2-phenylpyridinato-N,C2')iridium(III) 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 以85%的产率得到1-(2-fluoro-3-methyl-1-phenylbut-1-en-1-yl)-3-(trifluoromethyl)benzene
  参考文献：
  名称：

  Synthesis of Monofluoroalkenes through Visible-Light-Promoted Defluorinative Alkylation of gem-Difluoroalkenes with 4-Alkyl-1,4-dihydropyridines

  摘要：

  In this study, a facile and efficient method to synthesize monofluoroalkenes by photoredox catalytic defluorinative alkylation of gem-difluoroalkenes with 4-alkyl-1,4-dihydropyridines under mild conditions (room temperature) is described. This novel strategy is applicable for a broad range of gem-difluoroalkene substrates with good functional group tolerance and a variety of 4-alkyl-1,4-dihydropyridines (including primary, secondary, and even tertiary alkyl radicals). Moreover, it also allows the challenging radical coupling with glycosyl-based 4-alkyl-1,4-dihydropyridines (DHPs) to synthesize monofluoroalkenylated saccharides.

  DOI：

  10.1021/acs.orglett.0c00134
• 作为产物：
  描述：

  2,2,2-三氟乙基 对甲苯磺酸酯 在 bis-triphenylphosphine-palladium(II) chloride 、 sodium carbonate 、 caesium carbonate 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 29.0h， 生成 1-(2,2-二氟-1-苯基乙烯基)-3-(三氟甲基)苯
  参考文献：
  名称：

  Consecutive cross-coupling reactions of 2,2-difluoro-1-iodoethenyl tosylate with boronic acids: efficient synthesis of 1,1-diaryl-2,2-difluoroethenes

  摘要：

  2,2-二氟-1-碘乙烯基对甲苯磺酸酯（2）与2当量硼酸在Pd(OAc)2和Na2CO3的催化下发生交叉偶联反应，高产率地生成了单偶联产物3和5。在此反应中，使用4当量硼酸在Pd(PPh3)2Cl2和Na2CO3的催化下，形成了对称双偶联产物4，产率较高。在Pd(OAc)2和Na2CO3的催化下，将3与2当量硼酸反应，高产率地得到了非对称双偶联产物4。

  DOI：

  10.3762/bjoc.9.286

文献信息

• Efficient Synthesis of 2,2-Diaryl-1,1-difluoroethenes via Consecutive Cross-Coupling Reactions of 2,2-Difluoro-1-tributylstannylethenyl <i>p</i>-Toluenesulfonate
  作者：Seung Yeon Han、In Howa Jeong

  DOI：10.1021/ol1024037

  日期：2010.12.3

  2,2-Difluoro-1-tributylstannylethenyl p-toluenesulfonate (2) was reacted with aryl iodides in the presence of 10 mol % of Pd(PPh3)4 and 10 mol % of CuI in DMF at 80 °C for 10−20 h to give the cross-coupled products 3 in 35−97% yields. Further coupling reaction of 3 with arylstannanes in the presence of 5 mol % of Pd(PPh3)4 and 3 equiv of LiBr in DMF at 100 °C for 2−24 h afforded the desired products

  在10 mol％的Pd（PPh 3）4和10 mol％的CuI在DMF中于80°C的条件下于10°C的条件下使2,2-二氟-1-三丁基苯乙烯基对甲苯磺酸酯（2）与芳基碘化物反应h给出交叉耦合产物3，产率为35-97％。在DMF中，在5 mol％的Pd（PPh 3）4和3当量的LiBr存在下，将3与芳基锡烷进一步偶联反应，在100°C下进行2-24 h，得到所需产物5，产率为25-78％。
• A novel method for the synthesis of 2,2-diaryl-1,1-difluoroethenes
  作者：Ji Hoon Choi、In Howa Jeong

  DOI：10.1016/j.tetlet.2007.12.028

  日期：2008.2

  β,β-Difluoro-α-phenylvinylstannane 3 was prepared in 60% yield from the reaction of β,β-difluoro-α-phenylvinylsulfone 2 with tributyltin hydride in refluxing benzene for 5 h. The cross-coupling reaction of 3 with aryl iodides bearing substituents such as proton, fluoro, chloro, bromo, methoxy, methyl, trifluoromethyl, and nitro on ortho, meta, para positions of the benzene ring in the presence of 10 mol %

  β，β-二氟- α-phenylvinylstannane 3以60％的产率制备从β，β-二氟α-phenylvinylsulfone的反应2在回流的苯5小时氢化三丁基锡。在10 mol％Pd（存在）下，3与带有取代基（如质子，氟，氯，溴，甲氧基，甲基，三氟甲基和硝基）的芳基碘在苯环的邻，间，对位上的交叉偶联反应PPH 3）4 /10摩尔％的CuI，得到相应的2,2-二芳基-1,1-二difluoroethenes 4在22-82％的产率。
• Consecutive cross-coupling reactions of 2,2-difluoro-1-iodoethenyl tosylate with boronic acids: efficient synthesis of 1,1-diaryl-2,2-difluoroethenes
  作者：Ju Hee Kim、Su Jeong Choi、In Howa Jeong

  DOI：10.3762/bjoc.9.286

  日期：——

  The cross-coupling reactions of 2,2-difluoro-1-iodoethenyl tosylate (2) with 2 equiv of boronic acids in the presence of catalytic amounts of Pd(OAc)₂ and Na₂CO₃ afforded the mono-coupled products 3 and 5 in high yields. The use of 4 equiv of boronic acids in the presence of catalytic amount of Pd(PPh₃)₂Cl₂ and Na₂CO₃ in this reaction resulted in the formation of symmetrical di-coupled products 4 in high yields. Unsymmetrical di-coupled products 4 were obtained in high yields from the reactions of 3 with 2 equiv of boronic acids in the presence of catalytic amounts of Pd(OAc)₂ and Na₂CO_3.

  2,2-二氟-1-碘乙烯基对甲苯磺酸酯（2）与2当量硼酸在Pd(OAc)2和Na2CO3的催化下发生交叉偶联反应，高产率地生成了单偶联产物3和5。在此反应中，使用4当量硼酸在Pd(PPh3)2Cl2和Na2CO3的催化下，形成了对称双偶联产物4，产率较高。在Pd(OAc)2和Na2CO3的催化下，将3与2当量硼酸反应，高产率地得到了非对称双偶联产物4。
• Synthesis of Monofluoroalkenes through Visible-Light-Promoted Defluorinative Alkylation of <i>gem</i>-Difluoroalkenes with 4-Alkyl-1,4-dihydropyridines
  作者：Hai-Wu Du、Jing Sun、Qi-Sheng Gao、Jing-Yun Wang、He Wang、Zhaoqing Xu、Ming-Dong Zhou

  DOI：10.1021/acs.orglett.0c00134

  日期：2020.2.21

  In this study, a facile and efficient method to synthesize monofluoroalkenes by photoredox catalytic defluorinative alkylation of gem-difluoroalkenes with 4-alkyl-1,4-dihydropyridines under mild conditions (room temperature) is described. This novel strategy is applicable for a broad range of gem-difluoroalkene substrates with good functional group tolerance and a variety of 4-alkyl-1,4-dihydropyridines (including primary, secondary, and even tertiary alkyl radicals). Moreover, it also allows the challenging radical coupling with glycosyl-based 4-alkyl-1,4-dihydropyridines (DHPs) to synthesize monofluoroalkenylated saccharides.