4-(3,4-dichlorophenyl)-1,2,3-thiadiazole | 94843-30-8

• 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: 4-(3,4-dichlorophenyl)-1,2,3-thiadiazole
• 英文别名: 4-(3,4-dichlorophenyl)thiadiazole
• CAS: 94843-30-8
• 化学式: C₈H₄Cl₂N₂S
• 分子量: 231.105
• InChiKey: IPSUZXWGZYVNNU-UHFFFAOYSA-N

物化性质

• 熔点：
  87-89 °C(Solv: ethyl ether (60-29-7))
• 沸点：
  353.1±50.0 °C(Predicted)
• 密度：
  1.495±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• 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

• 作为反应物：
  描述：

  4-(3,4-dichlorophenyl)-1,2,3-thiadiazole 在 tetrakis(tetrabutylammonium)decatungstate(VI) 、 sodium t-butanolate 作用下， 以 四氢呋喃 、 水 、 乙腈 为溶剂， 反应 43.0h， 生成 3-(3,4-dichlorophenyl)-2-((difluoromethyl)thio)-4,4-dimethylcyclopentan-1-one
  参考文献：
  名称：

  10.1002/anie.202407689

  摘要：

  A photocatalyzed formal (3+2) cycloaddition has been developed to construct original polysubstituted α‐SCF3 cyclopentanones in a regio‐ and diastereoselective manner. This building block approach leverages trifluoromethylthio alkynes and branched / linear aldehydes, as readily available reaction partners, in consecutive hydrogen atom transfers and C–C bond formations. Difluoromethylthio alkynes are also compatible subtrates. Furthermore, the potential for telescoped reaction starting from alcohols instead of aldehydes was demonstrated, as well as process automatization and scale‐up under continuous microflow conditions. This prompted density functional theory calculations to support a free radical‐mediated cascade hydrogen atom transfer process.

  DOI：

  10.1002/anie.202407689
• 作为产物：
  描述：

  N'-(1-(3,4-dichlorophenyl)ethylidene)-4-methylbenzenesulfonohydrazide 在 dipotassium peroxodisulfate 、 碘 、 硫氰酸铵 作用下， 以 乙醇 为溶剂， 反应 12.0h， 以53%的产率得到4-(3,4-dichlorophenyl)-1,2,3-thiadiazole
  参考文献：
  名称：

  无过渡金属条件下，二碘/过硫酸钾介导的以N-甲苯磺酰and和硫氰酸盐为硫源的1,2,3-噻二唑的合成

  摘要：

  通过在室温下利用易得的甲苯磺酰hydr和硫氰酸铵以及生态友好的EtOH作为溶剂，已经开发出一种高效的合成1,2,3-噻二唑的方法。该反应显示出广泛的底物范围和良好的官能团耐受性。该协议可以放大至克级，并且可以用于以4-（4-溴苯基）-1,2,3-噻二唑为底物的偶​​联反应。

  DOI：

  10.1055/a-1473-7369

文献信息

• I₂/CuCl₂-promoted one-pot three-component synthesis of aliphatic or aromatic substituted 1,2,3-thiadiazoles
  作者：Can Wang、Xiao Geng、Peng Zhao、You Zhou、Yan-Dong Wu、Yan-Fang Cui、An-Xin Wu

  DOI：10.1039/c9cc04254g

  日期：——

  Simple and commercially available starting materials, a broad substrate scope, and excellent functional group tolerability make this strategy practical for applications. Furthermore, 1,2,3-thiadiazole synthesis was realized by using potassium thiocyanate as an odorless sulfur source.

  已经开发出一种有效的由I 2 / CuCl 2促进的一锅三组分策略，用于由脂肪族或芳香族取代的甲基酮，对甲苯磺酰肼和硫氰酸钾构造1,2,3-噻二唑。简单且可商购的起始材料，广泛的底物范围以及出色的官能团耐受性使该策略可实际应用于应用。此外，通过使用硫氰酸钾作为无味硫源实现了1,2,3-噻二唑的合成。
• Regio- and stereoselective synthesis of thiazoline derivatives <i>via</i> the thioketene-induced ring expansion of aziridines
  作者：Qiuyue Wu、Jiaxi Xu

  DOI：10.1039/d1cc06535a

  日期：——

  Metal-free thioketene-induced ring expansion of aziridines gave 4-alkylthiazolines stereospecifically from 2-alkylaziridines through an intramolecular substitution at the less substituted ring carbon and 5-arylthiazolines stereoselectively from 2-arylaziridines via tandem ring cleavage and formation through intimate ion-pair intermediates after nucleophilic addition of aziridines to thioketenes generated

  无金属硫烯酮诱导的氮丙啶环扩展通过在较少取代的环碳上的分子内取代从 2-烷基氮丙啶立体选择性地得到 4-烷基噻唑啉，通过串联环裂解和通过紧密离子对中间体形成从 2-芳基氮丙啶立体选择性地得到 5-芳基噻唑啉在碱存在下，将氮丙啶亲核加成到由 4-取代的 1,2,3-噻二唑生成的硫代烯酮上。
• 一种合成炔基烷基硫醚的方法
  申请人：华南理工大学

  公开号：CN114573485A

  公开（公告）日：2022-06-03

  本发明属于有机化学的技术领域，公开了一种合成炔基烷基硫醚的方法。所述方法为以有机溶剂为反应介质，噻二唑化合物与三级烷基溴化物在碱性化合物的作用下进行反应，获得炔基烷基硫醚。本发明的方法无需添加金属催化剂，产率高、底物适用性广。此外，本发明以噻二唑为原料，具有原料廉价易制备、操作简单、反应条件温和等优点。
• Synthesis of γ-Thiapyrones by Diels–Alder/Retro-Diels–Alder Reaction of α-Pyrones with 5-<i>H</i>-1,2,3-Thiadiazoles
  作者：Mengxia Feng、Bin Huang、Huanfeng Jiang、Liangbin Huang

  DOI：10.1021/acs.joc.3c02889

  日期：2024.4.19

  The efficient synthesis of γ-thiapyrones by a base-mediated Diels–Alder/retro-Diels–Alder reaction of α-pyrones with 5-H-1,2,3-thiadiazoles is reported herein. Thioketenes in situ generated from thiadiazoles as electron-poor dienophile and electron-rich 4-hydroxy-2-pyrones as dienes are conjunctively transformed into a series of γ-thiapyrones with broad functional group compatibility in good to excellent

  本文报道了通过 α-吡喃酮与 5- H -1,2,3-噻二唑的碱介导的 Diels-Alder/retro-Diels-Alder 反应有效合成 γ-噻喃酮。由作为缺电子亲二烯体的噻二唑和作为二烯的富电子 4-羟基-2-吡喃酮原位生成的硫烯酮被联合转化为一系列具有广泛官能团相容性的 γ-噻喃酮，产率良好到优异（35 个例子，67%）平均产量）。
• Synthesis and platelet aggregation inhibitory activity of 4,5-bis(substituted)-1,2,3-thiadiazoles
  作者：Edward W. Thomas、Edward E. Nishizawa、David C. Zimmermann、Davey J. Williams

  DOI：10.1021/jm00382a009

  日期：1985.4

  Routine screening of compounds for inhibition of collagen-induced platelet aggregation in vitro revealed 4,5-bis-(4-methoxyphenyl)-1,2,3-thiadiazole (2) was active and it represents the first example of a 1,2,3-thiadiazole with possible antithrombotic activity. In order to develop a structure-activity relationship for this heterocycle, a number of new 4(5)-mono- and -disubstituted 1,2,3-thiadiazoles were synthesized. These were tested in our screen and a number of additional active compounds were found. The most active compounds (2, 5a, 5b, and 6c) were those in which the heterocycle was substituted with benzene rings possessing para electron-donating groups.