4,5-Dimethyl-2-nitro-N-trifluoroacetylaniline | 1799-80-0

• 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: 4,5-Dimethyl-2-nitro-N-trifluoroacetylaniline
• 英文别名: N-(4,5-dimethyl-2-nitrophenyl)-2,2,2-trifluoroacetamide
• CAS: 1799-80-0
• 化学式: C₁₀H₉F₃N₂O₃
• 分子量: 262.188
• InChiKey: ONTXURSGNVVPCM-UHFFFAOYSA-N

物化性质

• 沸点：
  354.7±42.0 °C(Predicted)
• 密度：
  1.430±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  74.9
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4,5-Dimethyl-2-nitro-N-trifluoroacetylaniline 在 palladium on activated charcoal 氢气 、 硼酸 、 三溴化硼 、 potassium carbonate 作用下， 以 甲醇 、 二氯甲烷 、 溶剂黄146 、 N,N-二甲基甲酰胺 为溶剂， 反应 41.0h， 生成 10-<3-(2,5-Dihydroxyphenyl)propyl>-7,8-dimethylisoalloxazine
  参考文献：
  名称：

  Staab, Heinz A.; Kanellakopulos, Johannes; Kirsch, Peer, Liebigs Annalen, 1995, # 10, p. 1827 - 1836

  摘要：

  DOI：
• 作为产物：
  描述：

  4，5-二甲-2-硝基苯胺 、 三氟乙酸酐 在 碳酸氢钠 作用下， 以 二氯甲烷 为溶剂， 反应 0.5h， 生成 4,5-Dimethyl-2-nitro-N-trifluoroacetylaniline
  参考文献：
  名称：

  邻硝基三氟乙酰苯胺的“一锅”相转移烷基化/水解。N-ALKYLo-苯二胺的便捷途径

  摘要：

  摘要 多种邻硝基三氟乙酰苯胺经过一锅烷基化/水解，以 40-94% 的产率得到 N-烷基邻硝基苯胺。硫酸二甲酯、溴化苄和 1-溴丙烷用作亲电试剂。

  DOI：

  10.1080/00397919608003827

文献信息

• A “One-Pot” Phase Transfer Alkylation/Hydrolysis of<i>o</i>-Nitrotrifluoroacetanilides. A Convenient Route to<i>N</i>-ALKYL<i>o</i>-Phenylenediamines
  作者：Samuel A. Brown、Carmelo J. Rizzo

  DOI：10.1080/00397919608003827

  日期：1996.11

  Abstract A variety of o-nitrotrifluoroacetanilides undergo a one-pot alkylation/hydrolysis to give N-alkyl o-nitroanilines in 40–94% yield. Dimethylsulfate, benzyl bromide and 1-bromo-propane were used as the electrophiles.

  摘要 多种邻硝基三氟乙酰苯胺经过一锅烷基化/水解，以 40-94% 的产率得到 N-烷基邻硝基苯胺。硫酸二甲酯、溴化苄和 1-溴丙烷用作亲电试剂。
• [EN] FLAVIN DERIVATIVES<br/>[FR] DÉRIVÉS DE FLAVINE
  申请人：BIORELIX INC

  公开号：WO2011126567A1

  公开（公告）日：2011-10-13

  The present invention relates novel flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives.

  本发明涉及新型黄素衍生物，其用途和用作核糖开关配体和/或抗感染剂的组合物。
• FLAVIN DERIVATIVES
  申请人：Coish Philip D. G.

  公开号：US20130029980A1

  公开（公告）日：2013-01-31

  The present invention relates novel flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives.

  本发明涉及新型黄素衍生物，其用途和组合物，用作核糖开关配体和/或抗感染剂。
• Carell, Thomas; Epple, Robert; Gramlich, Volker, Angewandte Chemie, 1996, vol. 108, # 6, p. 676 - 679
  作者：Carell, Thomas、Epple, Robert、Gramlich, Volker

  DOI：——

  日期：——
• Investigation of Flavin-Containing DNA-Repair Model Compounds
  作者：Robert Epple、Ernst-Udo Wallenborn、Thomas Carell

  DOI：10.1021/ja964097u

  日期：1997.8.1

  Irradiation of DNA with UV-B light causes the formation of mutagenic DNA lesions such as cis-syn and trans-syn cyclobutane pyrimidine dimers. DNA photolyases are flavin-dependent repair enzymes which directly revert the mutagenic cis-syn pyrimidine dimers into the corresponding monomers by a light-facilitated repair reaction. To gain deeper insight into the repair process, we recently prepared flavin-containing model compounds which are able to mimic the repair reaction (Carell, T.; Epple, R.; Gramlich, V. Angew. Chem., Int. Ed. Engl. 1996, 35, 620-623). This publication now contains a detailed description of the synthesis of a series of related model compounds and a comprehensive investigation of their cleavage properties. The results obtained help to unravel the requirements necessary for an efficient, flavin-mediated cleavage of pyrimidine dimers and provide insight into the factors on which the enzymatic repair process depends. The investigation of the cleavage reaction with cis-syn, trans-syn, and hans-anti cyclobutane pyrimidine dimer model compounds reveal an enhanced vulnerability for the cis-syn isomer. The trans-syn dimer is 10 times more stable, These results are comparable to those observed in a recent study on the E. coli enzyme. The excellent solubility of some of the model compounds has allowed a medium-dependent investigation of the flavin-initiated cleavage reaction. increased cleavage efficiencies are observed in polar solvents such as water (phi = 0.06) and acetonitrile (phi = 0.05). The quantum yields decrease by a factor of 4 in solvents with very low polarity such as dioxane (phi = 0.01). These results are not in agreement with earlier solvent-dependent evaluations performed with non-flavin-containing model compounds (Hartzfeld, D. G.; Rose, S. D. J. Am. Chem. Soc. 1993, 115,850-854). The results, however, suggest that the unusually polar flavin-binding pocket, observed in the X-ray crystal structure of the E, coli. photolyase, might be required to increase the catalytic repair efficiency. Investigations of the cleavage reaction in the presence of acid and base in organic solvents emphasize the strict requirement for a deprotonated reduced riboflavin chromophore. The determined pH values for half-maximal (pH = 6.5) and maximal (7 less than or equal to pH less than or equal to 9) cleavage efficiencies are in agreement with the pK(a) value (pK(a) = 6.3) of the reduced riboflavin and reveal that physiological conditions are required to reach maximum catalytic cleavage efficiency.