1-(3-methoxyphenyl)-4-methyl-1H-tetrazole-5(4H)-thione | 1260488-17-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(3-methoxyphenyl)-4-methyl-1H-tetrazole-5(4H)-thione
• 英文别名: 1-(3-Methoxyphenyl)-4-methyltetrazole-5-thione
• CAS: 1260488-17-2
• 化学式: C₉H₁₀N₄OS
• 分子量: 222.271
• InChiKey: AZOFGEZKNZFNBW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  72.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1-(3-methoxyphenyl)-4-methyl-1H-tetrazole-5(4H)-thione 在 1,4-环己二烯 作用下， 以 乙腈 为溶剂， 反应 1.0h， 生成 N-methyl-N'-3-methoxyphenylthiourea
  参考文献：
  名称：

  Clean Photodecomposition of 1-Methyl-4-phenyl-1H-tetrazole-5(4H)-thiones to Carbodiimides Proceeds via a Biradical

  摘要：

  The photochemistry of 1-methyl-4-phenyl-1H-tetrazole-5(4H)-thione (la) and 1-(3-methoxyphenyl)4-methyl-1H-tetrazole-5(4H)-thione (1b) was studied in acetonitrile at 254 and 300 nm, which involves expulsion of dinitrogen and sulfur to form the respective carbodiimides 5a,b as sole photoproducts. Photolysis of the title compounds in the presence of 1,4-cyclohexadiene trap led to the formation of respective thioureas, providing strong evidence for the intermediacy of a 1,3-biradical formed by the loss of dinitrogen. In contrast, a trapping experiment with cyclohexene provided no evidence to support an alternative pathway of photodecomposition involving initial desulfurization followed by loss of dinitrogen via the intermediacy of a carbene. Triplet sensitization and triplet quenching studies argue against the involvement of a triplet excited state. While the quantum yields for the formation of the carbodiimides 5a,b were modest and showed little change on going from a C6H5 (1a) to mOMeC(6)H(4) (1b) substituent on the tetrazolethione ring, the highly clean photodecomposition of these compounds to a photostable end product makes them promising lead structures for industrial, agricultural, and medicinal applications.

  DOI：

  10.1021/jo1019859
• 作为产物：
  描述：

  3-甲氧基苯异氰酸 在 tetraphosphorus decasulfide 、 叠氮基三甲基硅烷 、 四丁基溴化铵 、 sodium hydroxide 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 生成 1-(3-methoxyphenyl)-4-methyl-1H-tetrazole-5(4H)-thione
  参考文献：
  名称：

  Clean Photodecomposition of 1-Methyl-4-phenyl-1H-tetrazole-5(4H)-thiones to Carbodiimides Proceeds via a Biradical

  摘要：

  The photochemistry of 1-methyl-4-phenyl-1H-tetrazole-5(4H)-thione (la) and 1-(3-methoxyphenyl)4-methyl-1H-tetrazole-5(4H)-thione (1b) was studied in acetonitrile at 254 and 300 nm, which involves expulsion of dinitrogen and sulfur to form the respective carbodiimides 5a,b as sole photoproducts. Photolysis of the title compounds in the presence of 1,4-cyclohexadiene trap led to the formation of respective thioureas, providing strong evidence for the intermediacy of a 1,3-biradical formed by the loss of dinitrogen. In contrast, a trapping experiment with cyclohexene provided no evidence to support an alternative pathway of photodecomposition involving initial desulfurization followed by loss of dinitrogen via the intermediacy of a carbene. Triplet sensitization and triplet quenching studies argue against the involvement of a triplet excited state. While the quantum yields for the formation of the carbodiimides 5a,b were modest and showed little change on going from a C6H5 (1a) to mOMeC(6)H(4) (1b) substituent on the tetrazolethione ring, the highly clean photodecomposition of these compounds to a photostable end product makes them promising lead structures for industrial, agricultural, and medicinal applications.

  DOI：

  10.1021/jo1019859