申请人:The Upjohn Company
公开号:US04084955A1
公开(公告)日:1978-04-18
Certain new 1-(substituted-hydrocarbyl)-di- and trihalopyrazoles have been synthesized. They possess herbicidal and plant growth regulatory activity. The hydrocarbyl group, i.e., alkylene or alkenylene group at the 1-nitrogen of the pyrazole nucleus has either a carboxyl group, an hydroxymethyl group, an hydroxymethyl lower-alkanoate group, a carboxylic lower-alkyl ester group, a cyano group, or a carboxylic amide group. The new compounds are prepared and isolated by conventional chemical reactions and procedures. An improved reaction for making the new carboxylic acids is described. Weed control methods and compositions for herbicidal use are also described.
已合成了某些新的1-(取代-碳氢基)-二和三卤代吡唑。它们具有除草和植物生长调节活性。在吡唑核的1-氮上的碳氢基团,即烷基或烯基团,可以是羧基、羟甲基基团、羟甲基较低烷酸酯基团、羧基较低烷基酯基团、氰基或羧基酰胺基团。这些新化合物通过常规化学反应和程序制备和分离。描述了制备新羧酸的改进反应。此外,还描述了用于除草的除草方法和组合物。