2,2,2-trichloro-1-(4-nitrophenyl)ethanol | 54075-25-1

• 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: 2,2,2-trichloro-1-(4-nitrophenyl)ethanol
• CAS: 54075-25-1
• 化学式: C₈H₆Cl₃NO₃
• 分子量: 270.5
• InChiKey: RWHUHQMPXMQXDN-UHFFFAOYSA-N

物化性质

• 熔点：
  93-94 °C(Solv: carbon tetrachloride (56-23-5); ligroine (8032-32-4))
• 沸点：
  385.3±42.0 °C(Predicted)
• 密度：
  1.624±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  66
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,2,2-trichloro-1-(4-nitrophenyl)ethanol 在 十六烷基三甲基溴化铵 sodium hydroxide 作用下， 以 水 为溶剂， 生成 对硝基苯甲醛
  参考文献：
  名称：

  十六烷基三甲基铵胶束与溴离子，氯离子和氢氧根抗衡离子对对位取代的芳基-2,2,2-三氯乙醇在NaOH水溶液中的分解速率的影响

  摘要：

  The effect of cetyltrimethylammonium micelles with bromide, chloride, and hydroxide counterions, CTAX, X = Br, Cl, OH, on the decomposition of aryl-2,2,2-trichloroethanols was determined. This reaction follows an (Elcb)R type mechanism, i.e., rapid reversible deprotonation of the alcohol by OH- followed by rate determining loss of trichloromethyl carbanion to give the benzaldehyde product. In the presence of surfactants, despite the 3-5-fold decrease in the rate constant for the unimolecular decomposition of the alkoxide ion in the micellar phase, k(m), the dependence of k(m) on substituents effects (values of rho of -0.49, -0.46, and -0.45 were obtained from the corresponding Hammett plots for CTABr, CTACl, and CTAOH) is similar to that observed in water (rho = -0.5). The observed inhibition can be rationalized in terms of charge stabilization of the ground state, i.e., quaternary ammonium ions interact more strongly with alkoxy anions than with trichloromethyl carbanions.

  DOI：

  10.1021/j100027a031
• 作为产物：
  描述：

  对硝基苯甲醛 在 氯仿 、 potassium tert-butylate 、 叔丁醇 作用下， 生成 2,2,2-trichloro-1-(4-nitrophenyl)ethanol
  参考文献：
  名称：

  Kaspar; Wiechert, Chemische Berichte, 1958, vol. 91, p. 2664,2667

  摘要：

  DOI：

文献信息

• A novel β-(oxy)alkyl radical during copper(I)-mediated stereoselective synthesis of (Z)-ene-1,4-diones in a reaction of 2,2,2-trichloro-1-phenylethanone
  作者：Ram N. Ram、Ram K. Tittal

  DOI：10.1016/j.tetlet.2016.04.080

  日期：2016.6

  novel β-(oxy)alkyl radical derived from trichloro methyl compound containing neither a suitably located C–C multiple bond nor a leaving group or a H-atom at the β-position of the radical in a reaction of 2,2,2-trichloro-1-phenyl-ethanone with 2 mol equiv each of CuCl and bpy in refluxing DCE under a N2 atm underwent intramolecular heterolysis (just like formation of intact radical cation–anion pair)

  由三氯甲基化合物衍生的新型β-（氧）烷基，在2,2,2的反应中，该基团的β-位上既不存在适当定位的CC多重键，也不包含离去基团或H原子在N 2 atm下回流的DCE中，CuCl和bpy各自具有2 mol当量的-三氯-1-苯基乙酮在立体选择性自由基二聚为Z -ene-1时经历分子内杂化（就像形成完整的自由基阳离子-阴离子对一样）。，4-二酮与少量的还原性脱氯产物。通过各种固体晶体产物的X射线衍射光谱法建立了立体化学。
• Copper(I)-Promoted Synthesis of Chloromethyl Ketones from Trichloromethyl Carbinols
  作者：Ram N. Ram、T. P. Manoj

  DOI：10.1021/jo8007644

  日期：2008.7.1

  Reaction of several trichloromethyl carbinols with 2 equiv of CuCl/bpy in refluxing DCE for 3 h afforded chloromethyl ketones in excellent yield by 1,2-H shift in the copper-chlorocarbenoid intermediate.

  几种三氯甲基甲醇与2当量的CuCl / bpy在回流DCE中反应3小时，得到的氯甲基酮的收率很高，通过铜-氯类化合物中间体的1,2-H转移。
• β-(Carbonatoxy)alkyl radicals: a new subset of β-(ester)alkyl radical fragmentation during copper(I)-mediated synthesis of 1,1-dichloro-1-alkenes
  作者：Ram N. Ram、Ram K. Tittal

  DOI：10.1016/j.tetlet.2014.05.097

  日期：2014.7

  A new subset of β-(ester)alkyl radicals is presented. It is the first study on the chemistry of β-(alkoxycarbonyloxy)alkyl radicals that fill the gap in the spectrum of the migrating groups in β-(ester)alkyl radical reactions. The change from less nucleofugal (acetate) group to the more nucleofugal (carbonate) group in the spectrum of the migrating group changed the reaction path from rearrangement

  提出了一个新的β-（酯）烷基自由基子集。这是对填充β-（酯）烷基自由基反应中迁移基团谱中间隙的β-（烷氧基羰基氧基）烷基自由基化学性质的首次研究。在迁移基团的光谱中，从较少的核真菌（乙酸盐）基团变为较高的核真菌（碳酸酯）基团的变化将反应路径从重排改变为片段化。该方法已用于高产率地合成1，1-二氯烯烃。二氯烯烃的形成是由于C的杂解导致烯烃自由基阳离子和碳酸根阴离子对（A CIP）的参与在β-（烷氧基羰氧基）烷基的β-位的碳酸酯的O键。通过与MeOH的亲核反应捕获烯基自由基阳离子以形成甲酯。
• One-Pot Synthesis of Trichloromethyl Carbinols from Primary Alcohols
  作者：Manoj K. Gupta、Zhexi Li、Timothy S. Snowden

  DOI：10.1021/jo300725v

  日期：2012.5.18

  Versatile trichloromethyl carbinols can be prepared in one pot from primary alcohols by treatment with Dess–Martin periodinane (DMP) in CHCl3 followed by introduction of commercially available 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD). A modification of the method was used to convert chiral primary alcohol (R)-(−)-2,2-dimethyl-1,3-dioxolane-4-methanol to the corresponding trichloromethyl carbinol with

  可以通过用Dess-Martin高碘烷（DMP）在CHCl 3中处理，然后引入市售的1,5,7-三氮杂双环[4.4.0] dec-5-ene（TBD ），在一锅中由伯醇制备多功能的三氯甲基甲醇。）。方法的一种改进是将手性伯醇（R）-（-）-2,2-二甲基-1,3-二氧戊环-4-甲醇转化为相应的具有完全立体化学保真度的三氯甲基甲醇，尽管反应物通过碱敏感的醛中间体。
• General and Practical Conversion of Aldehydes to Homologated Carboxylic Acids
  作者：Lauren R. Cafiero、Timothy S. Snowden

  DOI：10.1021/ol8016484

  日期：2008.9.1

  under basic conditions affords homologated carboxylic acids in high yields. This operationally simple procedure provides a practical, efficient alternative to other homologation protocols. The approach is compatible with sensitive aldehydes including enals and enolizable aldehydes. It also offers convenient access to alpha-monodeuterated carboxylic acids.

  在碱性条件下，醛与三氯甲基甲烷，然后与硼氢化钠或苯基硒基（三乙基）硼酸钠反应，可以高收率得到同系羧酸。该操作简单的过程为其他认证协议提供了一种实用，有效的替代方法。该方法与敏感的醛兼容，包括烯醛和可烯化的醛。它还提供了方便的获取α-单十二烷基羧酸的途径。