1-(4-fluorophenyl)-3-(4-methoxyphenyl)urea | 107676-55-1

• 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: 1-(4-fluorophenyl)-3-(4-methoxyphenyl)urea
• 英文别名: 3-(4-fluorophenyl)-1-(4-methoxyphenyl)urea；N-benzyl-N'-(4-methoxyphenyl)urea；N-(4-fluorophenyl)-N'-(4-methoxyphenyl)urea
• CAS: 107676-55-1
• 化学式: C₁₄H₁₃FN₂O₂
• 分子量: 260.268
• InChiKey: TYFLHNPOKOIZSJ-UHFFFAOYSA-N

物化性质

• 沸点：
  302.6±27.0 °C(Predicted)
• 密度：
  1.313±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  50.4
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(4-fluorophenyl)-3-(4-methoxyphenyl)urea 在 dinitrogen tetraoxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以38%的产率得到3-(4-fluorophenyl)-1-(4-methoxyphenyl)-3-nitrosourea
  参考文献：
  名称：

  Substituent effects on nitrosation of 1,3-diarylureas with nitrosyl chloride, dinitrogen trioxide, and dinitrogen tetroxide.

  摘要：

  制备了28个对位取代和11个邻位取代的1,3-二芳基脲。测得的质子核磁共振（1H-NMR）谱图用于评估对位取代脲脲基质子的酸性并估计邻位取代分子的构象。两个脲基质子的化学位移和酸度受1,3-二芳基脲中两个对位取代基的加和性控制。16个对位取代二芳基脲与气体亚硝化试剂（三氧化二氮、四氧化二氮或亚硝酰氯）经亚硝化反应得到不稳定的1,3-二芳基-1-亚硝基脲[R1-C6H4-N(NO)-CO-NH-C6H4-R2]和1,3-二芳基-3-亚硝基脲[R1-C6H4-NH-CO-N(NO)-C6H4-R2]异构体混合物。每种亚硝化脲的异构体比例与原始脲1H-NMR谱图中两个脲基质子化学位移差（d[NH]）相关。当d[NH]低于0.25 ppm（用NOCl）或0.45 ppm（用N2O3）时，获得了较好的线性关系（r(NOCl) = 0.943，n = 11；r(N2O3) = 0.869，n = 15）。当d[NH]高于0.25 ppm（用NOCl）或0.45 ppm（用N2O3）时，1-亚硝化异构体[R1-C6H4-N(NO)-CO-NH-C6H4-R2]是唯一产物。这些原理不能扩展到四氧化二氮。13个对位取代二芳基脲仅得到1-或3-亚硝化脲基衍生物作为唯一产物，只有4个得到亚硝化异构体混合物。测定了5种邻位取代1,3-二芳基脲的1H-NMR谱图用于构象分析。它们的构象似乎与对位取代二芳基脲不同。11个邻位取代1,3-二芳基脲与亚硝酰氯和四氧化二氮进行亚硝化反应。在许多情况下，亚硝基主要引入空间位阻较小的脲基氮，得到了1-和3-亚硝化脲的异构体混合物。

  DOI：

  10.1248/cpb.34.1950
• 作为产物：
  描述：

  4-氟苯胺 在 盐酸 、 palladium 10% on activated carbon 、 四丁基氯化铵 、 2-二环己基磷-2,4,6-三异丙基联苯 作用下， 以 水 、 甲苯 为溶剂， 20.0 ℃ 、101.33 kPa 条件下， 反应 24.17h， 生成 1-(4-fluorophenyl)-3-(4-methoxyphenyl)urea
  参考文献：
  名称：

  胺存在下Pd / C催化叠氮化物的羰基化

  摘要：

  据报道，在胺的存在下，脂肪族和芳香族叠氮化物的Pd / C催化简便，有效地羰基化反应。作为一系列生物药物中广泛存在的片段，在CO气氛下使用易于获得的廉价胺与胺进行叠氮化，可以直接合成官能化的不对称脲，而N 2是唯一的副产物。发现不仅芳基叠氮化物而且苄基和烷基叠氮化物也适用于该方法。该程序的另一个特点是采用了高效的钯木炭催化系统。

  DOI：

  10.1021/acs.orglett.6b00381

文献信息

• Aryl Urea Derivatives for Treating Obesity
  申请人：Bloxham Jason

  公开号：US20080261952A1

  公开（公告）日：2008-10-23

  A method of treating a condition associated with the CB-1 receptor, in particular obesity, by administering an effective amount of an aryl urea CB-1 receptor modulating compound to a subject in need of such treatment.

  通过向需要此类治疗的受试者施用有效量的芳基脲CB-1受体调节化合物来治疗与CB-1受体相关的疾病，尤其是肥胖症的方法。
• Microwave assisted, ligand free, copper catalyzed reaction of aryl halides with phenyl urea
  作者：Sandip N. Gavade、Ravi S. Balaskar、Madhav S. Mane、Pramod N. Pabrekar、Murlidhar S. Shingare、Dhananjay V. Mane

  DOI：10.1016/j.cclet.2010.09.037

  日期：2011.3

  ligand free coupling reaction of phenyl urea with different functionalized aryl halides in the presence of air stable Cu2O and t-BuOK as a base gives symmetrical and unsymmetrical diarylureas in relatively high yields. This method is milder than the palladium catalyzed arylation and avoids the use of toxic phosphine ligand. (C) 2010 Published by Elsevier B.V. on behalf of Chinese Chemical Society.
• ARYL UREA DERIVATIVES FOR TREATING OBESITY
  申请人：Prosidion Limited

  公开号：EP1786422A2

  公开（公告）日：2007-05-23
• [EN] ARYL UREA DERIVATIVES<br/>[FR] DERIVES D'UREE ARYLIQUE
  申请人：PROSIDION LTD

  公开号：WO2006018662A2

  公开（公告）日：2006-02-23

  A method of treating a condition associated with the CB-1 receptor, in particular obesity, by administering an effective amount of an aryl urea CB-1 receptor modulating compound to a subject in need of such treatment.
• Substituent effects on nitrosation of 1,3-diarylureas with nitrosyl chloride, dinitrogen trioxide, and dinitrogen tetroxide.
  作者：MAKOTO MIYAHARA

  DOI：10.1248/cpb.34.1950

  日期：——

  Twenty-eight para-substituted and eleven ortho-substituted 1, 3-diarylureas were prepared.Their proton nuclear magnetic resonance (1H-NMR) spectra were measured to evaluate the acidity of the ureido protons in the para-substituted ureas, and to estimate the conformations of ortho-substituted molecules. The chemical shifts and acidities of two ureido protons were additively controlled by the two para-substituents in the 1, 3-diarylureas. The sixteen para-substitued diarylureas were nitrosated with gaseous nitrosating reagents (dinitrogen trioxide, dinitrogen tetroxide or nitroxyl chloride) to give unstable isomeric mixtures of 1, 3-diaryl-1-nitrosoureas [R1-C6H4-N(NO)-CO-NH-C6H4-R2] and 1, 3-diaryl-3-nitrosoureas [R1-C6H4-NH-CO-N(NO)-C6H4-R2]. The isomer ratio of each nitrosated urea was correlated with the difference between the chemical shifts (d[NH]) of the two ureido protons in the 1H-NMR spectrum of the starting urea. When d[NH] was below 0.25 ppm (with NOCl) or 0.45 ppm (with N2O3), good linearity was obtained (r(NOCl)=0.943, n=11; r(N2O3)=0.869, n=15). When d[NH] was over 0.25 ppm (NOCl) or 0.45 ppm (N2O3), the 1-nitrosated isomer [R1-C6H4-N(NO)-CO-NH-C6H4-R2] was the sole product. These principles ould not be extended to dinitrogen tetroxide.Thirteen para-substituted diarylureas gave 1- or 3-nitrosated ureido derivatives as sole products and only four gave nitrosated isomeric mixtures.The 1H-NMR spectra of 5 types of ortho-substituted 1, 3-diarylureas were measured for comformational analysis. Their conformations seem to be different from those of para-substituted diarylureas. Eleven ortho-substituted 1, 3-diarylureas were nitrosated with nitrosyl chloride and dinitrogen tetroxide. In many cases, the nitroso group was predominantly introduced at the ureido nitrogen, which is less hindered sterically, and isomeric mixtures of 1- and 3-nitrosated ureas were obtained.

  制备了28个对位取代和11个邻位取代的1,3-二芳基脲。测得的质子核磁共振（1H-NMR）谱图用于评估对位取代脲脲基质子的酸性并估计邻位取代分子的构象。两个脲基质子的化学位移和酸度受1,3-二芳基脲中两个对位取代基的加和性控制。16个对位取代二芳基脲与气体亚硝化试剂（三氧化二氮、四氧化二氮或亚硝酰氯）经亚硝化反应得到不稳定的1,3-二芳基-1-亚硝基脲[R1-C6H4-N(NO)-CO-NH-C6H4-R2]和1,3-二芳基-3-亚硝基脲[R1-C6H4-NH-CO-N(NO)-C6H4-R2]异构体混合物。每种亚硝化脲的异构体比例与原始脲1H-NMR谱图中两个脲基质子化学位移差（d[NH]）相关。当d[NH]低于0.25 ppm（用NOCl）或0.45 ppm（用N2O3）时，获得了较好的线性关系（r(NOCl) = 0.943，n = 11；r(N2O3) = 0.869，n = 15）。当d[NH]高于0.25 ppm（用NOCl）或0.45 ppm（用N2O3）时，1-亚硝化异构体[R1-C6H4-N(NO)-CO-NH-C6H4-R2]是唯一产物。这些原理不能扩展到四氧化二氮。13个对位取代二芳基脲仅得到1-或3-亚硝化脲基衍生物作为唯一产物，只有4个得到亚硝化异构体混合物。测定了5种邻位取代1,3-二芳基脲的1H-NMR谱图用于构象分析。它们的构象似乎与对位取代二芳基脲不同。11个邻位取代1,3-二芳基脲与亚硝酰氯和四氧化二氮进行亚硝化反应。在许多情况下，亚硝基主要引入空间位阻较小的脲基氮，得到了1-和3-亚硝化脲的异构体混合物。