1-(2-Methylphenyl)-2,2,2-trifluoroethyl tosylate | 158884-39-0

• 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: 1-(2-Methylphenyl)-2,2,2-trifluoroethyl tosylate
• 英文别名: 2,2,2-trifluoro-1-[2-(methyl)phenyl]ethyl 4-methylbenzenesulfonate；[2,2,2-Trifluoro-1-(2-methylphenyl)ethyl] 4-methylbenzenesulfonate
• CAS: 158884-39-0
• 化学式: C₁₆H₁₅F₃O₃S
• 分子量: 344.355
• InChiKey: JOHHRTXVOLMXGT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1-(2-Methylphenyl)-2,2,2-trifluoroethyl tosylate 在 palladium on activated charcoal sodium hydroxide 、 N-溴代丁二酰亚胺(NBS) 、 2-硝基丙烷 、 氢气 、 sodium ethanolate 、 过氧化苯甲酰 作用下， 以 1,4-二氧六环 、 甲醇 、 四氯化碳 、 乙醇 为溶剂， 反应 18.0h， 生成 <2-(2,2,2-Trifluoroethyl)phenyl>diazomethane
  参考文献：
  名称：

  Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene

  摘要：

  Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).

  DOI：

  10.1021/jo00093a014
• 作为产物：
  描述：

  2'-甲基-2,2,2-三氟苯乙酮 在 sodium tetrahydroborate 、 sodium hydride 作用下， 以 1,4-二氧六环 、 乙醚 、 水 为溶剂， 生成 1-(2-Methylphenyl)-2,2,2-trifluoroethyl tosylate
  参考文献：
  名称：

  Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene

  摘要：

  Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).

  DOI：

  10.1021/jo00093a014

文献信息

• Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling of Secondary α-(Trifluoromethyl)benzyl Tosylates
  作者：Marta Brambilla、Matthew Tredwell

  DOI：10.1002/anie.201706631

  日期：2017.9.18

  palladium‐catalyzed C(sp3)−C(sp2) Suzuki–Miyaura cross‐coupling of aryl boronic acids and α‐(trifluoromethyl)benzyl tosylates is reported. A readily available, air‐stable palladium catalyst was employed to access a wide range of functionalized 1,1‐diaryl‐2,2,2‐trifluoroethanes. Enantioenriched α‐(trifluoromethyl)benzyl tosylates were found to undergo cross‐coupling to give the corresponding enantioenriched

  据报道，钯催化的C（sp 3）-C（sp 2）Suzuki-Miyaura芳基硼酸与α-（三氟甲基）苄基甲苯磺酸酯的交叉偶联。使用一种容易获得的，空气稳定的钯催化剂来获得各种官能化的1,1-二芳基-2,2,2,2-三氟乙烷。发现对映体富集的α-（三氟甲基）苄基甲苯磺酸酯经过交叉偶联，可得到相应的对映体富集的交叉偶联产物，其构型总体相反。与非氟化衍生物相比，CF 3基团在促进这种转变中的关键作用得到了证明。
• Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene
  作者：Wolfgang Kirmse、Wolfgang Konrad、Dirk Schnitzler

  DOI：10.1021/jo00093a014

  日期：1994.7

  Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).