3-chloro-4-vinyl-1,2,5-thiadiazole | 537706-09-5

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 芳基卤化物
• 英文名称: 3-chloro-4-vinyl-1,2,5-thiadiazole
• 英文别名: 3-chloro-4-ethenyl-1,2,5-thiadiazole
• CAS: 537706-09-5
• 化学式: C₄H₃ClN₂S
• 分子量: 146.6
• InChiKey: VZMXBGFYVPVDCT-UHFFFAOYSA-N

物化性质

• 沸点：
  186.3±20.0 °C(Predicted)
• 密度：
  1.419±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• 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：

  3-chloro-4-vinyl-1,2,5-thiadiazole 在 palladium on activated charcoal 、 氢气 作用下， 生成 3-Chloro-4-ethyl-1,2,5-thiadiazole
  参考文献：
  名称：

  [EN] HETEROCYCLIC COMPOUNDS AND USES THEREOF
  [FR] COMPOSÉS HÉTÉROCYCLIQUES ET LEURS UTILISATIONS

  摘要：

  本文提供了新型杂环化合物，例如具有I、I-P、II、II-P、III或IV式的化合物。本文还提供了包含这些化合物的制药组合物以及使用它们的方法，例如在抑制醛脱氢酶、视黄醇途径激活和/或治疗各种癌症、癌症转移、2型糖尿病、肺动脉高压（PAH）或新内膜增生（NIH）或作为男性避孕药物。

  公开号：

  WO2022226383A1
• 作为产物：
  描述：

  三丁基乙烯基锡 、 3,4-二氯-1,2,5-噻二唑 在 四(三苯基膦)钯 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以31%的产率得到3-chloro-4-vinyl-1,2,5-thiadiazole
  参考文献：
  名称：

  The Palladium-catalyzed Cross-Coupling Reactions of 3-Chloro-4-halogeno-1,2,5-thiadiazoles

  摘要：

  3,4-Dichloro- and 3-chloro-4-halogeno-1,2,5-thiadiazoles (halogeno-: bromo- and iodo-) are involved in Pd-catalyzed cross-coupling reactions under Stille and Suzuki conditions. As a result, by using the commercially available 3,4-dichloro-1,2,5-thiadiazole as substrate, several 3-alkyl-, 3-alkenyl-, 3-alkynyl-and 3-aryl-4-chloro-1,2,5-thiadiazoles can easily be prepared. However, these reactions through direct desymmetrization of the 3,4-dichloro-1,2,5-thiadiazole always occur with side-reactions resulting from the concurrent decomposition of the heterocyclic ring of the starting material. These problems are resolved by involving, in these Pd-catalyzed cross-coupling reactions, the more reactive and selective 3-bromo-4-chloro- and 3-chloro-4-iodo-1,2,5-thiadiazole. These new dihalogeno-1,2,5-thiadiazoles can easily be prepared, via diazotization reaction followed by halogen substitution, from the 3-amino-4-chloro-1,2,5-thiadiazole.

  DOI：

  10.3987/com-02-9550

文献信息

• The Palladium-catalyzed Cross-Coupling Reactions of 3-Chloro-4-halogeno-1,2,5-thiadiazoles
  作者：Alain Merschaert、Hugo J. Gorissen

  DOI：10.3987/com-02-9550

  日期：——

  3,4-Dichloro- and 3-chloro-4-halogeno-1,2,5-thiadiazoles (halogeno-: bromo- and iodo-) are involved in Pd-catalyzed cross-coupling reactions under Stille and Suzuki conditions. As a result, by using the commercially available 3,4-dichloro-1,2,5-thiadiazole as substrate, several 3-alkyl-, 3-alkenyl-, 3-alkynyl-and 3-aryl-4-chloro-1,2,5-thiadiazoles can easily be prepared. However, these reactions through direct desymmetrization of the 3,4-dichloro-1,2,5-thiadiazole always occur with side-reactions resulting from the concurrent decomposition of the heterocyclic ring of the starting material. These problems are resolved by involving, in these Pd-catalyzed cross-coupling reactions, the more reactive and selective 3-bromo-4-chloro- and 3-chloro-4-iodo-1,2,5-thiadiazole. These new dihalogeno-1,2,5-thiadiazoles can easily be prepared, via diazotization reaction followed by halogen substitution, from the 3-amino-4-chloro-1,2,5-thiadiazole.
• [EN] HETEROCYCLIC COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES ET LEURS UTILISATIONS
  申请人：KAYOTHERA INC

  公开号：WO2022226383A1

  公开（公告）日：2022-10-27

  Provided herein are novel heterocyclic compounds, for example, compounds having Formula I, I-P, II, II-P, III, or IV. Also provided herein are pharmaceutical compositions comprising the compounds and methods of using the same, for example, in inhibiting aldehyde dehydrogenases, retinoid pathway activation, and/or for treating various cancers, cancer metastasis, type 2 diabetes, pulmonary arterial hypertension (PAH) or neointimal hyperplasia (NIH) or as a male contraceptive.

  本文提供了新型杂环化合物，例如具有I、I-P、II、II-P、III或IV式的化合物。本文还提供了包含这些化合物的制药组合物以及使用它们的方法，例如在抑制醛脱氢酶、视黄醇途径激活和/或治疗各种癌症、癌症转移、2型糖尿病、肺动脉高压（PAH）或新内膜增生（NIH）或作为男性避孕药物。