Process for producing trifluoromethylpyridines
    24.
    发明授权
    Process for producing trifluoromethylpyridines 失效
    制备三氟甲基吡啶的方法

    公开(公告)号:US4563529A

    公开(公告)日:1986-01-07

    申请号:US270567

    申请日:1981-06-04

    CPC分类号: C07D213/61 C07D213/26

    摘要: A trifluoromethylpyridine selected from the group consisting of .alpha.-trifluoromethylpyridine, .gamma.-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 .alpha.-picoline, .gamma.-picoline and a lutidine with chlorine and anhydrous hydrogen fluoride at a temperature of 300.degree. to 600.degree. 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 aluminum, chromium, iron, nickel, manganese, cobalt and copper.

    摘要翻译: 选自α-三氟甲基吡啶,γ-三氟甲基吡啶,双(三氟甲基)吡啶及其吡啶核中具有1至3个氯原子的氯化物的三氟甲基吡啶通过使选自以下的吡啶衍生物 - 甲基吡啶,γ-甲基吡啶和二甲基吡啶与氯和无水氟化氢在温度为300℃至600℃的气相中,在稀释剂和包含选自以下的金属元素的氟化物的催化剂存在下, 由铝,铬,铁,镍,锰,钴和铜组成。

    Process for producing a .beta.-trifluoromethylpyridine
    25.
    发明授权
    Process for producing a .beta.-trifluoromethylpyridine 失效
    β-三氟甲基吡啶的制备方法

    公开(公告)号:US4417055A

    公开(公告)日:1983-11-22

    申请号:US356528

    申请日:1982-03-09

    CPC分类号: C07D213/61 C07D213/26

    摘要: A pyridine derivative having the formula ##STR1## wherein X.sup.2 and Y.sup.2 represents hydrogen atom or chlorine atom is produced by reacting a pyridine compound having the formula ##STR2## wherein X.sup.1 and Y.sup.1 represent hydrogen atom or chlorine atom, with chlorine and anhydrous hydrogen fluoride by a vapor phase reaction in the presence of a catalyst at a temperature of 250.degree. to 600.degree. C. using as the catalyst a fluoride of a metal selected from the group consisting of copper, vanadium, tin, bismuth, zirconium, magnesium, barium, zinc, calcium, potassium and sodium.

    摘要翻译: 通过使具有式“IMAGE”的吡啶化合物(其中X1和Y1代表氢原子或氯原子)与氯和无水氟化氢反应,其中X2和Y2表示氢原子或氯原子,其中X2和Y2表示氢原子或氯原子的吡啶衍生物通过 在250℃〜600℃的温度下,在催化剂存在下进行气相反应,使用选自铜,钒,锡,铋,锆,镁,钡等的金属的氟化物作为催化剂, 锌,钙,钾和钠。

    Process for producing 5-chloro-.beta.-trifluoromethylpyridines
    28.
    发明授权
    Process for producing 5-chloro-.beta.-trifluoromethylpyridines 失效
    生产5-氯-β-三氟甲基吡啶的方法

    公开(公告)号:US4420618A

    公开(公告)日:1983-12-13

    申请号:US401744

    申请日:1982-07-26

    CPC分类号: C07D213/61

    摘要: 5,6-Dichloro-.beta.-trifluoromethylpyridine or 2,5,6-trichloro-.beta.-trifluoromethylpyridine is produced by reacting 6-chloro-.beta.-trifluoromethylpyridine or 2,6-dichloro-.beta.-trifluoromethylpyridine with chlorine gas to chlorinate the 5-position of pyridine nucleus thereof:(1) at a temperature of 100.degree. C. to 250.degree. C. and at least sufficient amount of chlorine for the reaction;(2) in the presence of the catalyst of amount of at least 40% by weight (based on the 6-chloro or/and 2,6-dichloro-.beta.-trifluoromethylpyridine), the catalyst being chlorides a metallic element selected from the group consisting of iron, tungsten, molybdenum, titanium, and antimony.

    摘要翻译: 通过6-氯-β-三氟甲基吡啶或2,6-二氯-α-三氟甲基吡啶与氯气反应生成5,6-二氯-β-三氟甲基吡啶或2,5,6-三氯-β-三氟甲基吡啶, 吡啶核的位置:(1)在100℃至250℃的温度和至少足够量的氯用于反应; (2)在催化剂存在下,至少40重量%(基于6-氯或/和2,6-二氯-β-三氟甲基吡啶),催化剂是氯化物,选自下组的金属元素 由铁,钨,钼,钛和锑组成。