申请人:ISHIHARA SANGYO KAISHA LTD.
公开号:EP0042696A1
公开(公告)日:1981-12-30
A trifluoromethylpyridine selected from the group consisting of α-trifluoromethylpyridine, y-trifluoromethylpyridine, a bis(trifluoromethyl)pyridine and chlorides thereof which have 1 to 3 chlorine atoms in its pyridine nucleus is produced by reacting a pyridine derivative selected from the group consisting of a-picoline, y-picoline and a lutidine with chlorine and anhydrous hydrogen fluoride at a temperature of 300 to 600°C in a vapor phase in the presence of a diluent and a catalyst comprising a fluoride of a metallic element selected from the group consisting of aluminium, chromium, iron, nickel, manganese, cobalt and copper.
选自α-三氟甲基吡啶、y-三氟甲基吡啶、双(三氟甲基)吡啶及其吡啶核中含有 1 至 3 个氯原子的氯化物组成的组的三氟甲基吡啶,是由选自 a-甲基吡啶、y-甲基吡啶和鲁替丁的吡啶衍生物与氯和无水氟化氢在稀释剂和由氟化氢组成的催化剂存在下,于 300 至 600°C 的温度下在气相反应中生成的、三氟甲基)吡啶及其氯化物,其吡啶核中有 1 至 3 个氯原子,是由选自 a-甲基吡啶、y-甲基吡啶和 lutidine 的吡啶衍生物与氯和无水氟化氢在 300 至 600°C 的温度下,在稀释剂和由选自铝、铬、铁、镍、锰、钴和铜的金属元素的氟化物组成的催化剂存在下,在气相中反应制得的。