2,3-Dihydro-6-nitro-1H-pyrrolo<1,2-a>benzimidazol | 5367-69-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 2,3-Dihydro-6-nitro-1H-pyrrolo<1,2-a>benzimidazol
• 英文别名: 6-nitro-2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole；6-nitro-2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazole；6-nitropyrrolidino[1,2-a]benzimidazole；6-nitro-2,3-dihydro-1H-benzo[d]pyrrolo[1,2-a]imidazole；6-Nitro-2,3-dihydro-1-H-pyrrolo<1,2-a>benzimidazol；6-Nitro-2,3-dihydro-1H-pyrrolo<1,2-a>benzimidazol；10-Nitro-2,7-diazatricyclo[6.4.0.0(2,6)]dodeca-1(8),6,9,11-tetraene
• CAS: 5367-69-1
• 化学式: C₁₀H₉N₃O₂
• 分子量: 203.2
• InChiKey: MOOVHCPCRHRBNC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  63.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  1-吡咯里嗪-2,4-二硝基苯 在 edetate disodium 、 tin(ll) chloride 、 mercury(II) oxide 作用下， 以 水 为溶剂， 生成 2,3-Dihydro-6-nitro-1H-pyrrolo<1,2-a>benzimidazol
  参考文献：
  名称：

  Kondensierte Nitrobenzimidazole

  摘要：

  AbstractBei der Quecksilber(II)‐EDTA‐Dehydrierung von 2‐tert. Amino‐5‐nitroanilinen entstehen unter 4‐Elektronenentzug die entsprechenden Benzimidazole. Durch methodische Modifizierungen konnte die Ausbeute im Vergleich zu derjenigen bei Standardbedingungen erhöht werden.

  DOI：

  10.1002/ardp.19823150410

文献信息

• Metal-Free Sequential C(sp²)–H/OH and C(sp³)–H Aminations of Nitrosoarenes and <i>N</i>-Heterocycles to Ring-Fused Imidazoles
  作者：Anisha Purkait、Subhra Kanti Roy、Hemant Kumar Srivastava、Chandan K. Jana

  DOI：10.1021/acs.orglett.7b00832

  日期：2017.5.19

  Hydrogen bond assisted ortho-selective C(sp2)–H amination of nitrosoarenes and subsequent α-C(sp3)-H functionalization of aliphatic amines is achieved under metal-free conditions. The annulation of nitrosoarenes and 2-hydroxy-C-nitroso compounds with N-heterocycles provides a facile excess to a wide range of biologically relevant ring-fused benzimidazoles and structurally novel polycyclic imidazoles

  氢键辅助的亚硝基芳烃的邻位选择性C（sp 2）-H氨基化和随后的α-C（sp 3）-H脂肪族胺的官能化在无金属条件下实现。亚硝基芳烃和2-羟基-C-亚硝基化合物与N-杂环的环化分别提供了相对于广泛的生物学相关的环稠合的苯并咪唑和结构上新颖的多环咪唑的简便过量。发现在卤代亚硝基芳烃的C（sp 2）–H胺化过程中，亲核芳香族氢取代（S N ArH）比经典S N Ar反应更可取。
• Iridium-catalyzed intramolecular C N and C O/S cross-coupling reactions: Preparation of benzoazole derivatives
  作者：Yajie Shi、Qifan Zhou、Fangyu Du、Yang Fu、Yang Du、Ting Fang、Guoliang Chen

  DOI：10.1016/j.tetlet.2019.151082

  日期：2019.10

  The irdium-catalyzed intramolecular arylcarbon-hetero cross-coupling reactions with o-haloarylamides or o-haloarylamidine have been effectively achieved using KOAc and just 1 mol% catalyst. The [Ir(cod)Cl]2 was proved to be more potential for smoothly assembling functional structures benzimidazoles, benzoxazoles and benzothiazoles, which was superior to Cu- and Pd-catalyzed systems. Simultaneously

  使用KOAc和仅1mol％的催化剂已经有效地实现了铱催化的与邻卤代芳基酰胺或邻卤代芳基idine杂的分子内芳基碳杂交联反应。事实证明，[Ir（cod）Cl] 2具有更大的潜力，可以平稳地组装功能结构苯并咪唑，苯并恶唑和苯并噻唑，优于铜和钯催化的体系。同时，开发了一种5 g规模的简洁而有效的tafamidis合成方法。
• TRICYCLIC N-HETEROARYL-CARBOXAMIDE DERIVATIVES CONTAINING A BENZIMIDAZOLE UNIT, METHOD FOR PREPARING SAME AND THEIR THERAPEUTIC USE
  申请人：DUBOIS Laurent

  公开号：US20090042873A1

  公开（公告）日：2009-02-12

  The invention concerns tricyclic N-heteroarylcarboxamide derivatives containing a benzimidazole unit of general formula (I): Wherein A, P, Y, R 1 , R 2 and R 3 are as defined herein. The invention also concerns a method of preparing the compounds and their therapeutic use.

  这项发明涉及含有通式（I）中苯并咪唑单元的三环N-杂环酰胺衍生物，其中A、P、Y、R1、R2和R3如本文所定义。该发明还涉及制备这些化合物的方法及它们的治疗用途。
• Greener synthesis using hydrogen peroxide in ethyl acetate of alicyclic ring-fused benzimidazoles and anti-tumour benzimidazolequinones
  作者：Martin Sweeney、Michael Gurry、Lee-Ann J. Keane、Fawaz Aldabbagh

  DOI：10.1016/j.tetlet.2017.07.102

  日期：2017.9

  Environmentally-friendly and cost effective hydrogen peroxide in ethyl acetate was used to prepare in high yields pyrrolo[1,2-a]benzimidazoles from commercial o-(pyrrolidin-1-yl)anilines without the requirement for organic-aqueous extraction and chromatography. Six, seven and eight membered ring-fused analogues were similarly obtained in high yields with methanesulfonic acid required for the pyrido[1

  使用环境友好且经济高效的乙酸乙酯中的过氧化氢，无需有机水萃取和色谱法即可从商业邻-（吡咯烷基-1-基）苯胺制备高收率的吡咯并[1,2- a ]苯并咪唑。用吡啶[1,2- a ]苯并咪唑所需的甲磺酸，以高收率相似地获得了六，七和八元环稠合的类似物。通过3,6-二甲氧基-2-（环氨基）苯胺的环化，可以高产率获得抗肿瘤苯并咪唑醌衍生物。
• Synthesis of condensed heterocycles via cyclopropylimine rearrangement of cyclopropylazoles
  作者：Yury V. Tomilov、Dmitry N. Platonov、Aleksandr E. Frumkin、Dmitry L. Lipilin、Rinat F. Salikov

  DOI：10.1016/j.tetlet.2010.07.096

  日期：2010.9

  Thermal cyclopropylimine rearrangement of cyclopropylazoles into condensed heterocycles and factors affecting the regioselectivity and conversion are reported. A method of conducting the reaction in the absence of solvents is developed. A series of 2-cyclopropylazoles, including novel examples, is synthesized and their transformations into the corresponding condensed heterocyclic compounds (2,3-dihydro-1H-pyrroles

  报道了环丙基唑热环丙基亚胺重排成稠合杂环和影响区域选择性和转化的因素。开发了一种在不存在溶剂的情况下进行反应的方法。合成了一系列2-环丙基唑，包括新颖的实例，并将其转化为相应的稠合杂环化合物（2,3-二氢-1 H-吡咯和6,7-二氢-5 H-吡咯[2,1- b噻唑鎓盐）进行了研究。