2,4,5-三甲基-1,2,4-三唑-3-硫酮 | 37526-42-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2,4,5-三甲基-1,2,4-三唑-3-硫酮
• 英文名称: 2,4,5-trimethyl-2,4-dihydro-[1,2,4]triazole-3-thione
• 英文别名: 2,4,5-Trimethyl-1,2,4-triazole-3-thione
• CAS: 37526-42-4
• 化学式: C₅H₉N₃S
• 分子量: 143.213
• InChiKey: PUMDJKUSQNDNQI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  50.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,4,5-三甲基-1,2,4-三唑-3-硫酮 、 碘甲烷 以 丙酮 为溶剂， 生成
  参考文献：
  名称：

  Specific Molecular Orbital Contributions to Nucleophilicity. The Thiocarbonyl Group as Priviledged Monitor to Pinpoint Active and Less Active Molecular Orbitals in Reactions with Methylating Agents

  摘要：

  The rate constants for 41 compounds bearing a C=S function reacting with MeX (X = I, Tos) span 7 orders of magnitude. The PES spectra of these compounds display two very low energy peaks, which stand clearly apart from the other peaks. These two peaks correspond to the pi orbitals of the C-S group; one is its CS pi bonding orbital oriented out of the molecular plane (pi(CS)) and the other its p-type in-plane lone pair orbital (pi(S)). For some of the compounds, the HOMO is the pi(CS) orbital and for others the HOMO is the ns lone pair orbital. The best correlation (R = 0.96) between rate constants h and PES data is obtained when In(k) is plotted against the inverse of PES energy of the pi(S) lone pair orbital. Whether this lone pair orbital is the HOMO or the next lower HOMO has no importance. A modest correlation (R = 0.78) is obtained when In(k) is plotted against the inverse of PES energy of the pi(CS) bonding orbital, An attempt to correlate the calculated energy of the third highest occupied orbital (from AM1 calculations) with In(h) provides a complete scattering of data (R < 0.1), but the calculated energy of the second lone pair orbital sigma(S) (approximate to 90 kcal mol-l deeper than the HOMO) correlates reasonably with In(h) (R = 0.88). The energies of the S 2s and 2p core orbitals (calculated for 13 cyclic compounds with the HF/3-21G technique to be 4000 to 5500 kcal mol(-1) deeper than HOMO) correlate with In(k) (R = 0.86) as well as does that of the second lone pair orbital os. These results are the first where both frontier orbitals and core orbitals display correlation with overall reactivity. They are discussed in terms of direct (perturbational) versus indirect (nonperturbational) concepts.

  DOI：

  10.1021/jo00113a010
• 作为产物：
  描述：

  Acetaldehyde 2,4-dimethylthiosemicarbazone 在 三氯化铁 作用下， 以 乙醇 为溶剂， 反应 0.08h， 以13%的产率得到2,4,5-三甲基-1,2,4-三唑-3-硫酮
  参考文献：
  名称：

  Noto, Renato; Buccheri, Francesco; Cusmano, Giuseppe, Journal of Heterocyclic Chemistry, 1991, vol. 28, # 15, p. 1421 - 1427

  摘要：

  DOI：

文献信息

• A study of the behaviour of 2,4-substituted thiosemicarbazides toward orthoesters: Formation of mesoionic compounds
  作者：Francesco Buccheri、Giuseppe Cusmano、Michelangelo Gruttadauria、Renato Noto、Giuseppe Werber

  DOI：10.1002/jhet.5570340512

  日期：1997.9

  led to the formation of the 1,2,4-triazoline-5-thione ring and to the 1,2,4-triazolium-5-thiolate ring. The formation of the mesoionic componds is due to rearrangement of the easily available 2,4-disubstituted thiosemicarbazides to 1,4-disubstituted thiosemicarbazides under the reaction conditions adopted. This method can be usefully used for the synthesis of mesoionic compounds, especially in the case

  在回流的二甲苯中，2，4-二取代的硫代氨基脲和原酸酯的反应导致形成1,2,4-三唑啉-5-硫酮环和1,2,4-三唑鎓-5-硫醇盐环。中离子化合物的形成是由于在所采用的反应条件下容易获得的2，4-二取代的硫代氨基脲重排成1，4-二取代的硫代氨基脲。该方法可有效地用于介孔化合物的合成，特别是在2-甲基-4-苯基硫代氨基脲的情况下。
• Synthesis of pyrazole, 1,3,4-thiadiazole, and 1,2,4-triazole derivatives by condensatoin of 1,3-dioxo compounds with thiosemicarbazide derivatives
  作者：K. N. Zelenin、O. V. Solod、V. V. Alekseev、T. I. Pekhk、O. B. Kuznetsova、P. B. Terent'ev、A. G. Kalandarishvili

  DOI：10.1007/bf00472492

  日期：1990.9
• TEXTER, JOHN, ANAL. CHIM. ACTA , 248,(1991) N, C. 603-614
  作者：TEXTER, JOHN

  DOI：——

  日期：——
• Specific Molecular Orbital Contributions to Nucleophilicity. The Thiocarbonyl Group as Priviledged Monitor to Pinpoint Active and Less Active Molecular Orbitals in Reactions with Methylating Agents
  作者：M. Arbelot、A. Allouche、K. F. Purcell、M. Chanon

  DOI：10.1021/jo00113a010

  日期：1995.4

  The rate constants for 41 compounds bearing a C=S function reacting with MeX (X = I, Tos) span 7 orders of magnitude. The PES spectra of these compounds display two very low energy peaks, which stand clearly apart from the other peaks. These two peaks correspond to the pi orbitals of the C-S group; one is its CS pi bonding orbital oriented out of the molecular plane (pi(CS)) and the other its p-type in-plane lone pair orbital (pi(S)). For some of the compounds, the HOMO is the pi(CS) orbital and for others the HOMO is the ns lone pair orbital. The best correlation (R = 0.96) between rate constants h and PES data is obtained when In(k) is plotted against the inverse of PES energy of the pi(S) lone pair orbital. Whether this lone pair orbital is the HOMO or the next lower HOMO has no importance. A modest correlation (R = 0.78) is obtained when In(k) is plotted against the inverse of PES energy of the pi(CS) bonding orbital, An attempt to correlate the calculated energy of the third highest occupied orbital (from AM1 calculations) with In(h) provides a complete scattering of data (R < 0.1), but the calculated energy of the second lone pair orbital sigma(S) (approximate to 90 kcal mol-l deeper than the HOMO) correlates reasonably with In(h) (R = 0.88). The energies of the S 2s and 2p core orbitals (calculated for 13 cyclic compounds with the HF/3-21G technique to be 4000 to 5500 kcal mol(-1) deeper than HOMO) correlate with In(k) (R = 0.86) as well as does that of the second lone pair orbital os. These results are the first where both frontier orbitals and core orbitals display correlation with overall reactivity. They are discussed in terms of direct (perturbational) versus indirect (nonperturbational) concepts.
• Noto, Renato; Buccheri, Francesco; Cusmano, Giuseppe, Journal of Heterocyclic Chemistry, 1991, vol. 28, # 15, p. 1421 - 1427
  作者：Noto, Renato、Buccheri, Francesco、Cusmano, Giuseppe、Gruttadauria, Michelangelo、Werber, Giuseppe

  DOI：——

  日期：——

表征谱图