N¹-(4-bromobenzyl)benzene-1,2-diamine | 7191-86-8

• 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: N¹-(4-bromobenzyl)benzene-1,2-diamine
• 英文别名: N-(4-bromo-benzyl)-o-phenylenediamine；N-(4-Brom-benzyl)-o-phenylendiamin；2-N-[(4-bromophenyl)methyl]benzene-1,2-diamine
• CAS: 7191-86-8
• 化学式: C₁₃H₁₃BrN₂
• mdl: MFCD14696298
• 分子量: 277.164
• InChiKey: REWJPCRQOQFIAP-UHFFFAOYSA-N

物化性质

• 熔点：
  69-72 °C
• 沸点：
  412.7±30.0 °C(Predicted)
• 密度：
  1.473±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.076
• 拓扑面积：
  38
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N¹-(4-bromobenzyl)benzene-1,2-diamine 在 2,2,6,6-四甲基哌啶氧化物 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 以98%的产率得到2-(4-溴苯基)苯并咪唑
  参考文献：
  名称：

  Metal-Free TEMPO-Promoted C(sp³)–H Amination To Afford Multisubstituted Benzimidazoles

  摘要：

  An efficient TEMPO-air/cat. TEMPO-O-2 oxidative protocol was developed to synthesize multisubstituted or fused tetracyclic benzimidazoles via a metal-free oxidative C-N coupling between the sp(3) C-H and free N-H of readily available N-1-benzyl/alkyl-1,2-phenylenediamines.

  DOI：

  10.1021/jo5005179
• 作为产物：
  描述：

  N-(4-bromobenzyl)-2-nitroaniline 在 盐酸 、 锌 作用下， 以 乙醇 、 水 为溶剂， 生成 N¹-(4-bromobenzyl)benzene-1,2-diamine
  参考文献：
  名称：

  [EN] CFTR REGULATORS AND METHODS OF USE THEREOF
  [FR] RÉGULATEURS CFTR ET MÉTHODES POUR LES UTILISER

  摘要：

  本文提供了激活CFTR的化合物以及治疗便秘、干眼症和其他疾病和疾病的方法。

  公开号：

  WO2017112950A1

文献信息

• Potassium Periodate Mediated Oxidative Cyclodesulfurization toward Benzofused Nitrogen Heterocycles
  作者：Mookda Pattarawarapan、Chuthamat Duangkamol、Wong Phakhodee

  DOI：10.1055/s-0039-1690855

  日期：2020.7

  A convenient oxidative cyclodesulfurization method toward the synthesis of benzofused nitrogen heterocycles using inexpensive and readily available potassium periodate as an oxidant was developed. Upon treating isothiocyanates with ortho-substituted anilines bearing N,N-, N,O-, and N,S-bis-nucleophiles, followed by an intramolecular cyclization of the in situ generated monothioureas, substituted 2-aminobenzazole

  开发了一种方便的氧化环脱硫方法，该方法使用廉价且容易获得的高碘酸钾作为氧化剂合成苯并稠合的氮杂环。用带有N，N-，N，O-和N，S的邻位取代苯胺处理异硫氰酸酯时-双亲核试剂，然后分子内环化原位生成的单硫脲，取代的2-氨基苯并唑系列，其收率很高，收率很高。该方案可在两种底物上容纳各种取代基，同时相对于其他氧化偶联反应，可实现更高效，更绿色，操作更简单的过程。四环喹唑啉酮衍生物还可以在单​​一制备步骤中以高收率获得，并且无需色谱分离。
• Metal-Free Synthesis of Benzimidazoles via Oxidative Cyclization of <scp>d</scp>-Glucose with <i>o</i>-Phenylenediamines in Water
  作者：Dineshkumar Raja、Abigail Philips、Pushbaraj Palani、Wei-Yu Lin、Sundaramurthy Devikala、Gopal Chandru Senadi

  DOI：10.1021/acs.joc.0c01053

  日期：2020.9.4

  d-Glucose has been identified as an efficient C1 synthon in the synthesis of benzimidazoles from o-phenylenediamines via an oxidative cyclization strategy. Isotopic studies with 13C6-d-glucose and D2O unambiguously confirmed the source of methine. The notable features of this method include the following: broad functional group tolerance, a biorenewable methine source, excellent reaction yields, a

  d-葡萄糖已被确定为通过氧化环化策略由邻苯二胺合成苯并咪唑的有效C1合成子。用13 C 6 - d-葡萄糖和D 2 O进行的同位素研究明确证实了次甲基的来源。该方法的显着特征包括：宽泛的官能团耐受性，可生物再生的次甲基来源，优异的反应收率，较短的反应时间，水作为环境友好的溶剂以及以克为单位的维生素B 12组分的合成。
• Regioselective Nitration of <i>N</i>-Alkyl Anilines using <i>tert</i>-Butyl Nitrite under Mild Condition
  作者：Priyanka Chaudhary、Surabhi Gupta、Nalluchamy Muniyappan、Shahulhameed Sabiah、Jeyakumar Kandasamy

  DOI：10.1021/acs.joc.8b02377

  日期：2019.1.4

  Regioselective ring nitration of N-alkyl anilines is reported using tert-butyl nitrite. The reactions proceed efficiently with a wide range of substrates providing synthetically useful N-nitroso N-alkyl nitroanilines in excellent yields which can be easily converted into N-alkyl phenylenediamines and N-alkyl nitroanilines using Zn-AcOH and HCl/MeOH, respectively.

  据报道使用亚硝酸叔丁酯对N-烷基苯胺的区域选择性环硝化。该反应在多种底物下有效地进行，以优异的产率提供了合成上有用的N-亚硝基N-烷基硝基苯胺，可以分别使用Zn-AcOH和HCl / MeOH轻松地将其转化为N-烷基苯二胺和N-烷基硝基苯胺。
• Jerchel et al., Justus Liebigs Annalen der Chemie, 1952, vol. 575, p. 162,167
  作者：Jerchel et al.

  DOI：——

  日期：——
• Phenylquinoxalinone CFTR activator as potential prosecretory therapy for constipation
  作者：Onur Cil、Puay-Wah Phuan、Jung-Ho Son、Jie S. Zhu、Colton K. Ku、Niloufar Akhavan Tabib、Andrew P. Teuthorn、Loretta Ferrera、Nicholas C. Zachos、Ruxian Lin、Luis J.V. Galietta、Mark Donowitz、Mark J. Kurth、Alan S. Verkman

  DOI：10.1016/j.trsl.2016.10.003

  日期：2017.4

  Constipation is a common condition for which current treatments can have limited efficacy. By high-throughput screening, we recently identified a phenylquinoxalinone activator of the cystic fibrosis transmembrane conductance regulator (CFTR) chloride channel that stimulated intestinal fluid secretion and normalized stool output in a mouse model of opioid-induced constipation. Here, we report phenylquinoxalinone structure-activity analysis, mechanism of action, animal efficacy data in acute and chronic models of constipation, and functional data in ex vivo primary cultured human enterocytes. Structure-activity analysis was done on 175 phenylquinoxalinone analogs, including 15 synthesized compounds. The most potent compound, CFTRact-J027, activated CFTR with EC50 similar to 200 nM, with patch-clamp analysis showing a linear CFTR current-voltage relationship with direct CFTR activation. CFTRact-J027 corrected reduced stool output and hydration in a mouse model of acute constipation produced by scopolamine and in a chronically constipated mouse strain (C3H/HeJ). Direct comparison with the approved prosecretory. drugs lubiprostone and linaclotide showed substantially greater intestinal fluid secretion with CFTRact-J027, as well as greater efficacy in a constipation model. As evidence to support efficacy in human constipation, CFTRact-J027 increased transepithelial fluid transport in enteroids generated from normal human small intestine. Also, CFTRact-J027 was rapidly metabolized in vitro in human hepatic microsomes, suggesting minimal systemic exposure upon oral administration. These data establish structure-activity and mechanistic data for phenylquinoxalinone CFTR activators, and support their potential efficacy in human constipation.