3,5-bis(2-bromophenyl)-1,2,4-thiadiazole | 1356114-90-3

• 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: 3,5-bis(2-bromophenyl)-1,2,4-thiadiazole
• CAS: 1356114-90-3
• 化学式: C₁₄H₈Br₂N₂S
• 分子量: 396.105
• InChiKey: GZUZRRCPSISINW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-溴硫醇苯甲酰胺 在 叔丁基过氧化氢 作用下， 生成 3,5-bis(2-bromophenyl)-1,2,4-thiadiazole
  参考文献：
  名称：

  在无溶剂条件下，通过硫醇化和氧化二聚作用，从伯酰胺一锅两步合成 1,2,4-噻二唑：一种更环保的方法

  摘要：

  首次证明了在无溶剂的情况下，用劳森试剂（LR）和叔丁基过氧化氢（TBHP）从伯酰胺高效实用的一锅两步合成1,2,4-噻二唑。这种突破性且环保的方法利用了现成的原材料，并消除了反应过程中传统溶剂的使用。广泛的底物范围、在温和和无金属条件下出色的官能团耐受性、快速转化和出色的产率是该方法的基本特征。所有化合物均无需柱色谱法纯化。

  DOI：

  10.1039/d4ra03993a

文献信息

• Aerobic Visible‐Light Induced Intermolecular S−N Bond Construction: Synthesis of 1,2,4‐Thiadiazoles from Thioamides under Photosensitizer‐Free Conditions
  作者：Liang Zhuo、Shihua Xie、Hui Wang、Hongjun Zhu

  DOI：10.1002/ejoc.202100440

  日期：2021.6.21

  A green approach for S−N construction with concomitant synthesis of1,2,4-thiadiazoles was developed by visible-light induced oxidative cyclization of thioamides under photosensitizer-free conditions.

  在无光敏剂的条件下，通过可见光诱导硫代酰胺的氧化环化，开发了一种伴随合成 1,2,4-噻二唑的 S-N 构建的绿色方法。
• The facile and efficient organocatalytic platform for accessing 1,2,4-selenadiazoles and thiadiazoles under aerobic conditions
  作者：V.P. Rama Kishore Putta、Raghuram Gujjarappa、Nagaraju Vodnala、Richa Gupta、Prasad P. Pujar、Chandi C. Malakar

  DOI：10.1016/j.tetlet.2018.01.063

  日期：2018.3

  The first organocatalytic approach towards synthesis of rarely explored 1,2,4-selenadiazole and thiadiazole scaffolds have been devised using corresponding carboxamides as substrates. The transformations were realized using two distinct conditions in the presence of catalytic vitamin B3 or thiourea under aerobic conditions. Developed methods overcome the associated limitations of previous reported

  使用相应的羧酰胺作为底物，已经设计出第一种有机催化方法，用于合成很少探索的1,2,4-硒代二唑和噻二唑支架。在有氧条件下，在催化性维生素B 3或硫脲的存在下，使用两种不同的条件实现了转化。所开发的方法克服了先前报道的方法的相关局限性，并且以高收率和选择性获得了所需的产物，而没有形成有毒的副产物。
• A Simple and Convenient Method for the Synthesis of 3,5-disubstituted 1,2,4-thiadiazoles via Oxidative Dimerization of Primary Thioamides
  作者：D. Subhas Bose、K. Raghavender Reddy

  DOI：10.1002/jhet.2627

  日期：2017.1

  A simple and efficient protocol has been developed for the preparation of 3,5‐diaryl‐1,2,4‐thiadiazoles in high yields through the oxidative dimerization of primary thioamides in aqueous medium at room temperature.

  已开发出一种简单有效的方案，用于通过在室温下在水性介质中将伯硫酰胺氧化二聚来高收率制备3,5-二芳基-1,2,4-噻二唑。
• Optimizing thiadiazole analogues of resveratrol versus three chemopreventive targets
  作者：Abdelrahman S. Mayhoub、Laura Marler、Tamara P. Kondratyuk、Eun-Jung Park、John M. Pezzuto、Mark Cushman

  DOI：10.1016/j.bmc.2011.09.031

  日期：2012.1

  Chemoprevention is an approach to decrease cancer morbidity and mortality through inhibition of carcinogenesis and prevention of disease progression. Although the trans stilbene derivative resveratrol has chemopreventive properties, its action is compromised by weak non-specific effects on many biological targets. Replacement of the stilbene ethylenic bridge of resveratrol with a 1,2,4-thiadiazole heterocycle and modification of the substituents on the two aromatic rings afforded potential chemopreventive agents with enhanced potencies and selectivities when evaluated as inhibitors of aromatase and NF-kappa B and inducers of quinone reductase 1 (QR1). (C) 2011 Elsevier Ltd. All rights reserved.
• High yielding protocol for oxidative dimerization of primary thioamides: a strategy toward 3,5-disubstituted 1,2,4-thiadiazoles
  作者：G. Vanajatha、V. Prabhakar Reddy

  DOI：10.1016/j.tetlet.2016.04.029

  日期：2016.6

  Ceric ammonium nitrate (CAN), a highly versatile reagent, was found to efficiently mediate the oxidative dimerization of primary thioamides in acetonitrile at room temperature leading to the rapid and expeditious synthesis of symmetrically 3,5-disubstituted 1,2,4-thiadiazoles in high yields. (C) 2016 Elsevier Ltd. All rights reserved.