2,2-Dimethyl-3-(p-trifluormethylphenyl)-propionsaeuremethylester | 14248-25-0

• 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-Dimethyl-3-(p-trifluormethylphenyl)-propionsaeuremethylester
• 英文别名: Methyl 2,2-dimethyl-3-[4-(trifluoromethyl)phenyl]propanoate
• CAS: 14248-25-0
• 化学式: C₁₃H₁₅F₃O₂
• 分子量: 260.256
• InChiKey: YBPJBLDHOLQNQJ-UHFFFAOYSA-N

物化性质

• 沸点：
  267.7±35.0 °C(Predicted)
• 密度：
  1.155±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2,2-Dimethyl-3-(p-trifluormethylphenyl)-propionsaeuremethylester 在 lithium aluminium tetrahydride 作用下， 生成 2,2-Dimethyl-3-(p-trifluormethylphenyl)propanol
  参考文献：
  名称：

  The Migration Aptitude of Substituted Benzyl vs. Methyl in Carbonium Ion Reactions of the 2,2-Dimethyl-3-aryl-1-propyl System. The Question of Alkyl Participation¹

  摘要：

  DOI：

  10.1021/ja00976a022
• 作为产物：
  描述：

  4-三氟甲基苯甲酸 在 lithium aluminium tetrahydride 、 氯化亚砜 作用下， 以 乙醚 为溶剂， 生成 2,2-Dimethyl-3-(p-trifluormethylphenyl)-propionsaeuremethylester
  参考文献：
  名称：

  The Migration Aptitude of Substituted Benzyl vs. Methyl in Carbonium Ion Reactions of the 2,2-Dimethyl-3-aryl-1-propyl System. The Question of Alkyl Participation¹

  摘要：

  DOI：

  10.1021/ja00976a022

文献信息

• Sulfoximine Assisted Pd(II)-Catalyzed Bromination and Chlorination of Primary β-C(sp³)–H Bond
  作者：Raja K. Rit、M. Ramu Yadav、Koushik Ghosh、Majji Shankar、Akhila K. Sahoo

  DOI：10.1021/ol502337b

  日期：2014.10.17

  foximine (MPyS) directed bromination and chlorination of the 1°-β-C(sp3)–H bond of MPyS-N-amides is realized under the influence of N-Br/Cl-phthalimides and a Pd(II)-catalyst. The sequential halogenation and acetoxylation of α-dimethyl MPyS-N-amides constructs highly functionalized α-trisubstituted aliphatic acid derivatives. The MPyS directing group is cleaved from the halogenated products and recovered

  在N-Br / Cl的影响下，实现了MPyS-N-酰胺的1°-β-C（sp 3）-H键的S-甲基-S -2-吡啶基亚磺酰亚胺（MPyS）定向溴化和氯化。-邻苯二甲酰亚胺和Pd（II）催化剂。α-二甲基MPyS-N-酰胺的顺序卤化和乙酰氧基化可构建高度官能化的α-三取代脂族酸衍生物。从卤化产物中裂解出MPyS指导基团并回收。
• Copper-Catalyzed Intramolecular C(sp³)H and C(sp²)H Amidation by Oxidative Cyclization
  作者：Zhen Wang、Jizhi Ni、Yoichiro Kuninobu、Motomu Kanai

  DOI：10.1002/anie.201311105

  日期：2014.3.24

  The first copper‐catalyzed intramolecular C(sp3)H and C(sp2)H oxidative amidation has been developed. Using a Cu(OAc)2 catalyst and an Ag2CO3 oxidant in dichloroethane solvent, C(sp3)H amidation proceeded at a terminal methyl group, as well as at the internal benzylic position of an alkyl chain. This reaction has a broad substrate scope, and various β‐lactams were obtained in excellent yield, even

  第一铜催化的分子内C（SP 3） H和（SPç 2） ħ氧化酰胺化得到了发展。在二氯乙烷溶剂中使用Cu（OAc）2催化剂和Ag 2 CO 3氧化剂，在末端甲基以及烷基链的内部苄基位置处进行C（SP 3）H酰胺化反应。该反应具有广泛的底物范围，即使以克为单位，也能以优异的收率获得各种β-内酰胺。在O 2下使用CuCl 2和Ag 2 CO 3但是，在二甲基亚砜中的空气会通过C（SP 2）H酰胺化选择性地生成2-吲哚酮。动力学同位素效应（KIE）的研究表明，Ç  H键活化是速率决定步骤。可以通过氧化除去5-甲氧基喹啉基。
• Cobalt‐Catalyzed Enantio‐ and Regioselective C(sp³)−H Alkenylation of Thioamides
  作者：Lucia Staronova、Ken Yamazaki、Xing Xu、Heyao Shi、F. Matthias Bickelhaupt、Trevor A. Hamlin、Darren J. Dixon

  DOI：10.1002/anie.202316021

  日期：2024.3.22

  An enantioselective cobalt‐catalyzed C(sp³)−H alkenylation of thioamides with but‐2‐ynoate ester coupling partners employing thioamide directing groups is presented. The method is operationally simple and requires only mild reaction conditions, while providing alkenylated products as single regioisomers in excellent yields (up to 85 %) and high enantiomeric excess [up to 91 : 9 enantiomeric ratio (er), or up to >99 : 1 er after a single recrystallization]. Diverse downstream derivatizations of the products are demonstrated, delivering a range of enantioenriched constructs. Extensive computational studies using density functional theory provide insight into the detailed reaction mechanism, origin of enantiocontrol, and the unusual regioselectivity of the alkenylation reaction.

  摘要 介绍了一种由钴催化的 C(sp3)-H 对映体选择性烯化硫代酰胺与丁-2-炔酸酯偶联剂（使用硫代酰胺指导基团）的方法。该方法操作简单，只需温和的反应条件，就能以优异的收率（高达 85 %）和较高的对映体过量（对映体比 (er) 高达 91 : 9，或对映体比 (er) 高达 99 ：1 er]。产品的下游衍生过程多种多样，可提供一系列对映体富集结构。利用密度泛函理论进行的广泛计算研究深入揭示了详细的反应机理、对映控制的起源以及烯化反应不同寻常的区域选择性。
• Highly Regioselective Carbonylation of Unactivated C(sp³)–H Bonds by Ruthenium Carbonyl
  作者：Nao Hasegawa、Valentine Charra、Satoshi Inoue、Yoshiya Fukumoto、Naoto Chatani

  DOI：10.1021/ja2001709

  日期：2011.6.1

  The regioselective carbonylation of unactivated C(sp(3))-H bonds of aliphatic amides was achieved using Ru-3(CO)(12) as a catalyst. The presence of a 2-pyridinylmethylamine moiety in the amide is crucial for a successful reaction. The reaction shows a preference for C-H bonds of methyl groups as opposed to methylene C-H bonds and tolerates a variety of functional groups. The stoichiometric reaction of an amide with Ru-3(CO)(12) gave a dinuclear ruthenium complex in which the 2-pyridinylmethylamino moiety was coordinated to the ruthenium center in an N,N manner.