3-bromo-2-chloro-5-difluoromethylpyridine | 71702-02-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 3-bromo-2-chloro-5-difluoromethylpyridine
• 英文别名: 3-Bromo-2-chloro-5-(difluoromethyl)pyridine
• CAS: 71702-02-8
• 化学式: C₆H₃BrClF₂N
• 分子量: 242.45
• InChiKey: GBCWHAQVDBVKOL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• Herbicidal halogenomethyl--pyridyloxy-phenoxy-alkanecarboxylic acids and derivatives, and processes of controlling unwanted plants therewith
  申请人：IMPERIAL CHEMICAL INDUSTRIES PLC

  公开号：EP0001473A2

  公开（公告）日：1979-04-18

  Herbicidal pyridine compounds of the formula wherein Z and Y each represent a fluorine, chlorine, bromine, iodidine, or hydrogen atom, or a trifluoromethyl, difluoromethyl, or chlorodifluoromethyl radical. provided that at least one of Z and Y is a halogenomethyl radical; R1 represents hydrogen or an alkyl radical of 1 to 4 carbon atoms; and R2 is a cyano group; a carboxyl group; one of a specified range of carboxamide or alkoxycarbonyl groups; a cyclohexyloxycarbonyl radical optionally substituted by one or more halogen atoms or methyl radicals; an alkenyloxycarbonyl radical in which the alkenyl group contains from 3 to 6 carbon atoms; a phenoxycarbonyl radical optionally bearing one or more halogen or methyi substituents; or a benzyloxycarbonyl radical, the phenyl group of which optionally bears one or more halogen or methyl substituents; and in the case of compounds wherein R2 is a carboxyl group, salts thereof. The compounds are useful as selective herbicides for grass weeds in broad-leaved crops, intermediates of formula with Y = hydrogen or chlorine.

  式中的除草吡啶化合物 其中 Z 和 Y 分别代表氟、氯、溴、碘、氢原子或三氟甲基、二氟甲基或氯二氟甲基基。条件是 Z 和 Y 中至少有一个是卤代甲基基；R1 代表氢或 1 至 4 个碳原子的烷基；R2 是氰基；羧基；指定范围的羧酰胺基或烷氧基羰基之一；任选被一个或多个卤原子或甲基基取代的环己氧羰基；烯氧羰基，其中烯基含有 3 至 6 个碳原子； 苯氧羰基，可选择带有一个或多个卤素或甲基取代基；或苄氧羰基，其中苯基可选择带有一个或多个卤素或甲基取代基；以及 R2 为羧基的化合物的盐。这些化合物可用作阔叶作物禾本科杂草的选择性除草剂，其中间体式为 其中 Y = 氢或氯。
• 2-Chloro-5-trichloromethylpyridine
  申请人：IMPERIAL CHEMICAL INDUSTRIES PLC

  公开号：EP0021453A2

  公开（公告）日：1981-01-07

  A compound which is 2-chloro-5-trichloromethyl- pyridine and a composition consisting essentially of 2-chloro-5-trifluoromethylpyridine. The compound and the composition are useful in the preparation of 2-[4-(5-trifluoromethylpyridyl- 2-oxy)phenoxy} propionic acid and its derivatives, which are useful as herbicides.

  一种 2-氯-5-三氟甲基吡啶化合物和一种主要由 2-氯-5-三氟甲基吡啶组成的组合物。该化合物和组合物可用于制备 2-[4-(5-三氟甲基吡啶- 2-氧基)苯氧基}丙酸及其衍生物，可用作除草剂。
• Phenoxypyridine compound
  申请人：IMPERIAL CHEMICAL INDUSTRIES PLC

  公开号：EP0028870A1

  公开（公告）日：1981-05-20

  A compound which is 5-trifluoromethyl-2-p-hydroxy- phenoxypyridine or a metal salt. The compound and salts are useful in the preparation of 2-[4-(5-trifluoromethyl- pyridyl-2-oxy) phenoxy]propionic acid and its derivatives, which are useful as herbicides.

  一种 5-三氟甲基-2-对羟基-苯氧基吡啶或其金属盐的化合物，该化合物及其盐类可用于制备 2-[4-(5-三氟甲基-吡啶-2-氧基)苯氧基]丙酸及其衍生物，可用作除草剂。
• Trihalomethylpyridine compounds
  申请人：IMPERIAL CHEMICAL INDUSTRIES PLC

  公开号：EP0107866A2

  公开（公告）日：1984-05-09

  The invention provides, as new compounds, 2,3-dichloro-5-trichloromethylpyridine and 2,3-dichloro-5-trifluoromethylpyridine, and a process for preparing the latter and its analogues from the former and its analogues. The compounds are useful in preparing herbicidal α-[4-(5-trifluoromethyl- and chlorodifluoromethyl-pyridine-2-yloxy)phenoxyl propionic acids and derivatives thereof.

  本发明提供了作为新化合物的 2,3-二氯-5-三氯甲基吡啶和 2,3-二氯-5-三氟甲基吡啶，以及用前者及其类似物制备后者及其类似物的工艺。这些化合物可用于制备除草剂α-[4-(5-三氟甲基-和氯二氟甲基吡啶-2-基氧基)苯氧基丙酸及其衍生物。
• US4324627A
  申请人：——

  公开号：US4324627A

  公开（公告）日：1982-04-13