略述了吡啶及其衍生物的某些研究动态,主要概述2-氯-5-甲基吡啶的合成以及在合成农药特别在作为除草剂原料或中间体中的应用,它们包括:2-氯-5-甲基吡啶-N-氧化物,2-氯-5-三氟甲基吡啶,2-氯-5-氯甲基吡啶、2-氯-3-甲基吡啶等,展望了吡啶及其衍生物的发展前景。 The progress of some studies on pyridine and its derivatives is briefly reviewed. The synthesis of 2-chloro-5-methylpyridine and its applications in synthetic pesticides, especially as herbicides or intermediates, are summarized. These include 2-chloro- -5-picoline-N-oxide, 2-chloro-5-trifluoromethylpyridine, 2-chloro-5-chloromethylpyridine and 2-chloro-3-methylpyridine. The development prospects of its derivatives.