4-(3,4-methylenedioxybenzoyl)-5-methylsulfanyl-1,2,3-thiadiazole | 1428878-90-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: 4-(3,4-methylenedioxybenzoyl)-5-methylsulfanyl-1,2,3-thiadiazole
• 英文别名: 1,3-Benzodioxol-5-yl-(5-methylsulfanylthiadiazol-4-yl)methanone；1,3-benzodioxol-5-yl-(5-methylsulfanylthiadiazol-4-yl)methanone
• CAS: 1428878-90-3
• 化学式: C₁₁H₈N₂O₃S₂
• 分子量: 280.328
• InChiKey: UYUXFDYVWWHAPR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  115
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  methyl 3-(benzo[d][1,3]dioxol-5-yl)-3-hydroxyprop-2-enedithioate 在 对甲苯磺酰叠氮 、 三乙胺 作用下， 反应 0.07h， 以91%的产率得到4-(3,4-methylenedioxybenzoyl)-5-methylsulfanyl-1,2,3-thiadiazole
  参考文献：
  名称：

  Eco-efficient, regioselective and rapid access to 4,5-disubstituted 1,2,3-thiadiazoles via [3 + 2] cycloaddition of α-enolicdithioesters with tosyl azide under solvent-free conditions

  摘要：

  通过 α 的 [3 + 2] 环加成，实现了迄今为止未报道的 4-芳酰基/杂酰基/烷酰基-5-烷基/烯丙基/苄基硫基-1,2,3-噻二唑的高效、可持续和区域选择性一锅法合成-烯醇二硫酯与甲苯磺酰叠氮通过级联 1–2 (S–N) 和 3–4 (C–N) 键连接，涉及 Wolff 型杂环化。最理想的是，当α-烯醇二硫酯和甲苯磺酰叠氮化物的混合物在无溶剂条件下、Et3N存在下于0℃搅拌时，反应非常快并在2-15分钟内完成。此外，不需要助催化剂或活化剂。生态相容性、温和的条件、优异的产量、易于纯化和避免昂贵/有毒试剂是该协议获得这种医学上特权子结构的优点。

  DOI：

  10.1039/c3gc37047j

文献信息

• Eco-efficient, regioselective and rapid access to 4,5-disubstituted 1,2,3-thiadiazoles via [3 + 2] cycloaddition of α-enolicdithioesters with tosyl azide under solvent-free conditions
  作者：Maya Shankar Singh、Anugula Nagaraju、Girijesh Kumar Verma、Gaurav Shukla、Rajiv Kumar Verma、Abhijeet Srivastava、Keshav Raghuvanshi

  DOI：10.1039/c3gc37047j

  日期：——

  An efficient, sustainable, and regioselective one-pot synthesis of hitherto unreported 4-aroyl/hetaroyl/alkanoyl-5-alkyl/allyl/benzylsulfanyl-1,2,3-thiadiazoles has been achieved by [3 + 2] cycloaddition of α-enolicdithioesters with tosyl azide through cascade 1–2 (S–N) and 3–4 (C–N) bond connections involving Wolff-type heterocyclization. Optimally, the reactions are very fast and completed within 2–15 minutes, when a mixture of α-enolicdithioester and tosyl azide was stirred at 0 °C in the presence of Et3N under solvent-free conditions. Furthermore, no co-catalyst or activator is necessary. The eco-compatibility, mild conditions, excellent yields, easy purification, and avoidance of expensive/toxic reagents are advantages of this protocol to access this medicinally privileged substructure.

  通过 α 的 [3 + 2] 环加成，实现了迄今为止未报道的 4-芳酰基/杂酰基/烷酰基-5-烷基/烯丙基/苄基硫基-1,2,3-噻二唑的高效、可持续和区域选择性一锅法合成-烯醇二硫酯与甲苯磺酰叠氮通过级联 1–2 (S–N) 和 3–4 (C–N) 键连接，涉及 Wolff 型杂环化。最理想的是，当α-烯醇二硫酯和甲苯磺酰叠氮化物的混合物在无溶剂条件下、Et3N存在下于0℃搅拌时，反应非常快并在2-15分钟内完成。此外，不需要助催化剂或活化剂。生态相容性、温和的条件、优异的产量、易于纯化和避免昂贵/有毒试剂是该协议获得这种医学上特权子结构的优点。
• Visible light promoted synthesis of disubstituted 1,2,3-thiadiazoles
  作者：Vishal SRIVASTAVA、Pravin K. SINGH、Praveen P. SINGH

  DOI：10.33224/rrch.2020.65.3.01

  日期：——

  A novel one-pot visible light irradiated synthesis of disubstituted 1,2,3-thiadiazole from alpha-enolicdithioesters with tosyl azide have been reported. The reaction completed within 12-20 minutes, at room temperature, when a mixture of alpha-enolicdithioester and tosyl azide undergo photocatalysed reaction under solvent-free conditions. Furthermore, no co-catalyst or activator is necessary. This protocol includes eco-compatibility, mild conditions, excellent yields, easy purification, and avoidance of expensive/toxic reagents to synthesise organic compounds of medicinal importance, which fulfils the basic principle of green chemistry.