2-amino-5-methoxy-8-methyl-1,2,4-triazolo[1,5-c]pyrimidine | 219715-66-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 三唑并嘧啶类
• 英文名称: 2-amino-5-methoxy-8-methyl-1,2,4-triazolo[1,5-c]pyrimidine
• 英文别名: 2-Amino-8-methyl-5-methoxy[1,2,4]triazolo[1,5-c]-pyrimidine；5-Methoxy-8-methyl-[1,2,4]triazolo[1,5-c]pyrimidin-2-amine
• CAS: 219715-66-9
• 化学式: C₇H₉N₅O
• 分子量: 179.181
• InChiKey: NFAGUEKROQLWGP-UHFFFAOYSA-N

物化性质

• 熔点：
  >250 °C
• 密度：
  1.56±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  78.3
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-amino-5-methoxy-8-methyl-1,2,4-triazolo[1,5-c]pyrimidine 、 2,6-二氯苯磺酰氯 在 吡啶 、 二甲基亚砜 作用下， 以 乙腈 为溶剂， 反应 6.0h， 以86%的产率得到2,6-dichloro-N-(5-methoxy-8-methyl-1,2,4-triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide
  参考文献：
  名称：

  Penoxsulam—Structure–activity relationships of triazolopyrimidine sulfonamides

  摘要：

  The discovery of the sulfonamide herbicides, which inhibit the enzyme acetolactate synthase (ALS), has resulted in many investigations to exploit their herbicidal activity. One area which proved particularly productive was the N-aryltriazolo[1,5-c]pyrimidine sulfonamides, providing three commercial herbicides, cloransulam-methyl, diclosulam and florasulam. Additional structure-activity investigations by reversing the sulfonamide linkage resulted in the discovery of triazolopyrimidine sulfonamides with cereal crop selectivity and high levels of grass and broadleaf weed control. Research efforts to exploit these high levels of weed activity ultimately led to the discovery of penoxsulam, a new herbicide developed for grass, sedge and broadleaf weed control in rice. Synthetic efforts and structure-activity relationships leading to the discovery of penoxsulam will be discussed. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2009.02.010
• 作为产物：
  描述：

  3-amino-8-methyl-5-methylthio-1,2,4-triazolo[4,3-c]pyrimidine hydrobromide 、 sodium methylate 在 丙烯酸乙酯 作用下， 以 甲醇 为溶剂， 生成 2-amino-5-methoxy-8-methyl-1,2,4-triazolo[1,5-c]pyrimidine
  参考文献：
  名称：

  Penoxsulam—Structure–activity relationships of triazolopyrimidine sulfonamides

  摘要：

  The discovery of the sulfonamide herbicides, which inhibit the enzyme acetolactate synthase (ALS), has resulted in many investigations to exploit their herbicidal activity. One area which proved particularly productive was the N-aryltriazolo[1,5-c]pyrimidine sulfonamides, providing three commercial herbicides, cloransulam-methyl, diclosulam and florasulam. Additional structure-activity investigations by reversing the sulfonamide linkage resulted in the discovery of triazolopyrimidine sulfonamides with cereal crop selectivity and high levels of grass and broadleaf weed control. Research efforts to exploit these high levels of weed activity ultimately led to the discovery of penoxsulam, a new herbicide developed for grass, sedge and broadleaf weed control in rice. Synthetic efforts and structure-activity relationships leading to the discovery of penoxsulam will be discussed. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2009.02.010

文献信息

• N-([1,2,4] triazoloazinyl) thiophenesulfonamide compounds and their use as herbicides
  申请人：——

  公开号：US20020094935A1

  公开（公告）日：2002-07-18

  N-(Triazoloazinyl)thiophenesulfonamide compounds were prepared from appropriately substituted 2-amino[1,2,4]triazolo[1,5-c]pyrimidine, 2-amino[1,2,4]triazolo[1,5-a]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]pyridine compounds and appropriately substituted thiophenesulfonyl chloride compounds. The compounds were found to be useful as herbicides.

  N-(三唑啉基)噻吩磺胺化合物是从适当取代的2-氨基[1,2,4]三唑[1,5-c]嘧啶、2-氨基[1,2,4]三唑[1,5-a]嘧啶和2-氨基[1,2,4]三唑[1,5-a]吡啶化合物以及适当取代的噻吩磺酰氯化合物制备而成的。这些化合物被发现对除草剂具有用途。
• N-( 1,2,4] TRIAZOLOAZINYL)BENZENESULFONAMIDE AND PYRIDINESULFONAMIDE COMPOUNDS AND THEIR USE AS HERBICIDES
  申请人：Dow Agrosciences LLC

  公开号：EP0877745B1

  公开（公告）日：2001-07-25
• N-( 1,2,4 TRIAZOLOAZINYL) THIOPHENESULFONAMIDE COMPOUNDS AS HERBICIDES
  申请人：Dow AgroSciences LLC

  公开号：EP1330458B1

  公开（公告）日：2009-06-03