4-methyl-pentenedioic acid-anhydride | 54657-92-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: 4-methyl-pentenedioic acid-anhydride
• 英文别名: 4-Methyl-pentendisaeure-anhydrid；gamma-methylglutaconic anhydride；4-methyl-glutaconic anhydride；4-Methylglutaconic anhydride；3-methyl-3H-pyran-2,6-dione
• CAS: 54657-92-0
• 化学式: C₆H₆O₃
• 分子量: 126.112
• InChiKey: USVBYBGIRAGHRK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-methyl-pentenedioic acid-anhydride 、 苯胺 生成 2-methyl-4-phenylcarbamoyl-crotonic acid
  参考文献：
  名称：

  Feist; Pomme, Justus Liebigs Annalen der Chemie, 1909, vol. 370, p. 78

  摘要：

  DOI：
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 五氯化磷 作用下， 生成 4-methyl-pentenedioic acid-anhydride
  参考文献：
  名称：

  Feist; Pomme, Justus Liebigs Annalen der Chemie, 1909, vol. 370, p. 78

  摘要：

  DOI：

文献信息

• N-aryl\x9b1,2,4!triazolo\x9b1,5-a!pyridine-2-sulfonamide herbicides
  申请人：DowElanco

  公开号：US05700940A1

  公开（公告）日：1997-12-23

  Substituted N-aryl\x9b1,2,4!triazolo\x9b1,5-a!pyridine-2-sulfonamide compounds, such as N-(2,6-difluorophenyl)-5-methoxy-7-methyl\x9b1,2,4!triazolo\x9b1,5-a!pyridine-2- sulfonamide, N-(4-bromo-1-methyl-3-pyrazolyl)-8-chloro-5-methoxy\x9b1,2,4!triazolo\x9b1,5-a!p yridine-2-sulfonamide, and N-(2-fluoro-4-methyl-3-pyridinyl)-8-ethoxy-6-chloro\x9b1,2,4!triazolo\x9b1,5-a!p yridine-2-sulfonamide, were prepared by condensation of a 2-chlorosulfonyl\x9b1,2,4!triazolo\x9b1,5-a!pyridine compound with an aryl amine. The compounds prepared were found to possess excellent herbicidal activity on a broad spectrum of vegetation at low application rates.

  替代的N-芳基[1,2,4]三唑[1,5-a]吡啶-2-磺酰胺化合物，例如N-(2,6-二氟苯基)-5-甲氧基-7-甲基[1,2,4]三唑[1,5-a]吡啶-2-磺酰胺，N-(4-溴-1-甲基-3-吡唑基)-8-氯-5-甲氧基[1,2,4]三唑[1,5-a]吡啶-2-磺酰胺和N-(2-氟-4-甲基-3-吡啶基)-8-乙氧基-6-氯[1,2,4]三唑[1,5-a]吡啶-2-磺酰胺，通过2-氯磺酰[1,2,4]三唑[1,5-a]吡啶化合物与芳基胺缩合而成。发现所制备的化合物在低施用量下对广谱植被具有出色的除草活性。
• N-aryl[1,2,4]triazolo[1,5-a]pyridine-2-sulfonamide herbicides
  申请人：DowElanco

  公开号：US05571775A1

  公开（公告）日：1996-11-05

  Substituted N-aryl[1,2,4]triazolo[1,5-a]pyridine-2-sulfonamide compounds, such as N-(2,6-difluorophenyl)-5-methoxy-7-methyl[1,2,4]triazolo[1,5-a]pyridine-2- sulfonamide, N-(4-bromo-1-methyl-3-pyrazoly)-8-chloro-5-methoxy[1,2,4]triazolo[1,5-a]py ridine-2-sulfonamide, and N-(2-fluoro-4-methyl-3-pyridinyl)-8-ethoxy-6-chloro[1,2,4]triazolo[1,5-a]- pyridine-2-sulfonamide, were prepared by condensation of a 2-chlorosulfonyl[1,2,4]triazolo[1,5-a]pyridine compound with an aryl amine. The compounds prepared were found to possess excellent herbicidal activity on a broad spectrum of vegetation at low application rates.

  替代的N-芳基[1,2,4]三唑并[1,5-a]吡啶-2-磺酰胺化合物，例如N-(2,6-二氟苯基)-5-甲氧基-7-甲基[1,2,4]三唑并[1,5-a]吡啶-2-磺酰胺，N-(4-溴-1-甲基-3-吡唑基)-8-氯-5-甲氧基[1,2,4]三唑并[1,5-a]吡啶-2-磺酰胺，以及N-(2-氟-4-甲基-3-吡啶基)-8-乙氧基-6-氯[1,2,4]三唑并[1,5-a]-吡啶-2-磺酰胺，通过将2-氯磺酰基[1,2,4]三唑并[1,5-a]吡啶化合物与芳基胺缩合制备而成。发现所制备的化合物在低施用剂量下对广谱植被具有出色的除草活性。
• N-(1-ethyl-4-pyrazolyl)triazoloazinesulfonamide herbicides
  申请人：Dow AgroSciences LLC

  公开号：US05763359A1

  公开（公告）日：1998-06-09

  Substituted N-(1-ethyl-4-pyrazolyl)triazoloazinesulfonamide compounds, such as N-(1-ethyl-5-methyl-3-(trifluoromethyl)-4-pyrazoyl)-5-methoxy-7-methyl-\x9b1, 2,4!triazolo\x9b1,5-c!pyrimidine-2-sulfonamide and N-(1-ethyl-5-methyl-3-(trifluoromethyl)-4-pyrazolyl)-5-methoxy-7-methyl\x9b1, 2,4!triazolo\x9b1,5-a!pyridine-2-sulfonamide, were prepared and found to possess selective herbicidal utility. The compounds are especially useful for the preemergence control of grassy weeds in soybeans

  制备了替代的N-(1-乙基-4-吡唑基)三唑氮磺酰胺化合物，例如N-(1-乙基-5-甲基-3-(三氟甲基)-4-吡唑基)-5-甲氧基-7-甲基-1,2,4-三唑并[1,5-c]嘧啶-2-磺酰胺和N-(1-乙基-5-甲基-3-(三氟甲基)-4-吡唑基)-5-甲氧基-7-甲基-1,2,4-三唑并[1,5-a]吡啶-2-磺酰胺，并发现具有选择性的除草效用。这些化合物特别适用于大豆中草本杂草的预出苗控制。
• 2-Benzylthio-8-amino(1,2,4)triazolo(1,5-pyridines
  申请人：Dow AgroSciences LLC

  公开号：EP0972774A2

  公开（公告）日：2000-01-19

  The invention relates to 2-benzylthio-8-amino[1,2,4]triazolo[1,5-a]pyridines and a process for the preparation thereof. These compounds can be used for the preparation of 2-benzylthio[1,2,4]triazolo[1,5-a]pyridine compounds, which are important intermediates in the preparation of N-aryl[1,2,4]triazolo[1,5-a]pyridines. The reaction is generally carried out by combining one molar equivalent of a 2-benzylthio-8-chloro[1,2,4]triazolo[1,5-a]pyridine compound with at least 3 molar equivalents of stannous chloride, one molar equivalent of stannic chloride, and an excess of hydrogen chloride or at least one molar equivalent of the alcohol.

  本发明涉及 2-苄硫基-8-氨基[1,2,4]三唑并[1,5-a]吡啶及其制备工艺。这些化合物可用于制备 2-苄硫基[1,2,4]三唑并[1,5-a]吡啶化合物，后者是制备 N-芳基[1,2,4]三唑并[1,5-a]吡啶的重要中间体。 该反应一般通过将 1 摩尔当量的 2-苄硫基-8-氯[1,2,4]三唑并[1,5-a]吡啶化合物与至少 3 摩尔当量的氯化亚锡、1 摩尔当量的氯化锡和过量的氯化氢或至少 1 摩尔当量的醇结合进行。
• Thole; Thorpe, Journal of the Chemical Society, 1911, vol. 99, p. 2205
  作者：Thole、Thorpe

  DOI：——

  日期：——