6-fluoro-2-(piperidin-1-yl)benzo[d]thiazole | 863001-07-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻唑类
• 英文名称: 6-fluoro-2-(piperidin-1-yl)benzo[d]thiazole
• 英文别名: 6-fluoro-2-morpholinobenzo[d]thiazole；6-fluoro-2-piperidin-1-yl-1,3-benzothiazole
• CAS: 863001-07-4
• 化学式: C₁₂H₁₃FN₂S
• 分子量: 236.313
• InChiKey: FUDQREUSMMRVDJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  44.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  N-(4-fluoro-2-iodophenyl)formamide 在 1,10-菲罗啉 、 potassium sulfide 、 碘 、 三乙胺 、 三苯基膦 、 copper(l) chloride 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 6-fluoro-2-(piperidin-1-yl)benzo[d]thiazole
  参考文献：
  名称：

  铜催化的2-碘苯基异氰酸酯，硫化钾和胺的合成2-氨基苯并噻唑†

  摘要：

  开发了一种简单而实用的合成方法，用于合成各种2-氨基苯并噻唑。这种方法可以在一步反应中构建一个C–N键和两个C–S键，并以理想的产率提供理想的产物。

  DOI：

  10.1039/c6ob02413k

文献信息

• Derisking the Cu-Mediated ¹⁸F-Fluorination of Heterocyclic Positron Emission Tomography Radioligands
  作者：Nicholas J. Taylor、Enrico Emer、Sean Preshlock、Michael Schedler、Matthew Tredwell、Stefan Verhoog、Joel Mercier、Christophe Genicot、Véronique Gouverneur

  DOI：10.1021/jacs.7b03131

  日期：2017.6.21

  Molecules labeled with fluorine-18 (18F) are used in positron emission tomography to visualize, characterize and measure biological processes in the body. Despite recent advances in the incorporation of 18F onto arenes, the development of general and efficient approaches to label radioligands necessary for drug discovery programs remains a significant task. This full account describes a derisking approach

  用氟 18 (18F) 标记的分子用于正电子发射断层扫描，以可视化、表征和测量体内的生物过程。尽管最近在将 18F 掺入芳烃方面取得了进展，但开发通用且有效的方法来标记药物发现计划所需的放射性配体仍然是一项重大任务。这个完整的描述描述了杂环正电子发射断层扫描 (PET) 放射性配体的放射合成方法，使用铜介导的 18F 氟化芳基硼试剂与 18F 氟化物作为模型反应。该方法基于一项研究，该研究检查了药物开发中常用的杂环的存在如何影响代表性芳基硼试剂的 18F-氟化效率，以及超过 50 种（杂）芳基硼酸酯的标记。这组数据允许将这种去风险策略应用于七种结构复杂的药物相关含杂环分子的成功放射合成。
• An “on-water” exploration of CuO nanoparticle catalysed synthesis of 2-aminobenzothiazoles
  作者：Saroj Kumar Rout、Srimanta Guin、Jayashree Nath、Bhisma K. Patel

  DOI：10.1039/c2gc35575b

  日期：——

  An “on-water” one-pot process has been engineered for the preparation of 2-aminobenzothiazole from ortho-halo (–F, –Cl, –Br and –I) substituted unsymmetrical thioureas. For ortho –I and –Br substrates the reactions afford 2-aminobenzothiazoles under metal free condition promoted by base. However, the relatively inert ortho –Cl and –F substrates undergo intramolecular arylthiolation only in the presence of CuO nanoparticles yielding 2-aminobenzothiazoles. This methodology provides easy access to aminobenzothiazoles utilising even the ortho –Cl and –F substrates. The catalyst is recyclable several times without loss of substantial activity. Other remarkable features include the wide range of functional group tolerance, absence of chromatographic purification (for ortho –I and –Br substrates) and providing moderate to excellent yield of the products under mild conditions, thus rendering the methodology as a highly eco-friendly alternative to the existing methods.

  一种“水上”一锅法被设计用于从邻卤素（-F、-Cl、-Br和-I）取代的不对称硫脲制备2-氨基苯并噻唑。对于邻-I和邻-Br底物，反应在无金属的条件下，在碱的促进下生成2-氨基苯并噻唑。然而，相对惰性的邻-Cl和邻-F底物仅在存在CuO纳米颗粒的条件下进行分子内芳香硫化反应，生成2-氨基苯并噻唑。该方法为利用邻-Cl和邻-F底物提供了简便的氨基苯并噻唑合成途径。催化剂可多次回收使用，且活性无显著下降。其他显著特点包括对多种功能团的良好耐受性、邻-I和邻-Br底物不需要进行层析纯化，以及在温和条件下提供中等至优良的产物收率，从而使该方法成为现有方法的高度环保替代品。
• Laccase-Catalysed Homocoupling of Primary Aromatic Amines towards the Biosynthesis of Dyes
  作者：Ana Catarina Sousa、Lígia O. Martins、M. Paula Robalo

  DOI：10.1002/adsc.201300501

  日期：2013.10.11

  AbstractColoured disubstituted benzoquinonimine trimeric structures are obtained as main reaction products of the oxidation of p‐electron donor primary aromatic amines using two different laccases, CotA‐laccase from Baccilus subtilus and TvL from Trametes versicolor. These orange‐red to purple products, presenting high molar extinction coefficients, presumably result from oxidative homocoupling reactions, through the formation of NC bonds at positions 2 and 5, of the laccase oxidised intermediate as showed in the proposed oxidative pathway. The product of 1,4‐phenylenediamine is shown to be the trimer known as Bandrowski’s base which has an established role in hair and fur dyeing. Our results also show that the occurrence and/or rates of oxidation of aromatic amines are strongly dependent on the presence of p‐electron releasing substituents in the aromatic ring and are independent on the properties of the enzyme used. Overall our data contribute for (i) understanding key features of laccase reactivity with p‐substituted aromatic amines and (ii) establishing enzymatic processes that lead to the synthesis of coloured bio‐products under mild conditions with potential impact in the cosmetic and dye industries.magnified image
• Convenient and Reliable Routes Towards 2-Aminothiazoles: Palladium-Catalyzed<i>versus</i>Copper-Catalyzed Aminations of Halothiazoles
  作者：Stéphanie Toulot、Timo Heinrich、Frédéric R. Leroux

  DOI：10.1002/adsc.201300591

  日期：2013.11.11

  AbstractTwo efficient methods for the amination of 2‐halothiazoles are presented here. A first protocol requires a Pd/L system. Several 2‐aminothiazoles were synthesized under optimized conditions and isolated in good yields. The first palladium‐catalyzed CN coupling reactions between 2‐halothiazoles and primary alkylamines are presented. In a second part, ligand‐free copper‐catalyzed aminations of 2‐halothiazoles by alkylamines and aniline in a green solvent have been developed. The protocol is very effective for primary and secondary amines and perfectly tolerates the presence of another halide moiety on the 2‐halothiazole. The reaction occurs under the assistance of microwave irradiation, which drastically decreases the reaction time. The reaction leads to the formation of 2‐aminothiazoles, key molecules in pharmaceutical research.magnified image
• Synthesis of 2-N-substituted benzothiazoles via domino condensation-hetero cyclization process, mediated by copper oxide nanoparticles under ligand-free conditions
  作者：G. Satish、K. Harsha Vardhan Reddy、K. Ramesh、K. Karnakar、Y.V.D. Nageswar

  DOI：10.1016/j.tetlet.2012.03.012

  日期：2012.5

  A simple and highly practical method for the synthesis of 2-N-substituted benzothiazoles has been developed by using nanocopper oxide as a recyclable catalyst. The present tandem process allows to get access to a wide range of 2-N-substituted benzothiazoles in good to excellent yields by the reaction of 2-iodo aniline with carbon disulfide and piperidine in presence of KOH as a base and DMSO as a solvent under ligand-free conditions. (C) 2012 Elsevier Ltd. All rights reserved.