Process for preparation of .alpha.,.alpha.-difluoroalkoxy or .alpha.,.alpha
.
    47.
    发明授权
    Process for preparation of .alpha.,.alpha.-difluoroalkoxy or .alpha.,.alpha . 失效
    制备α,α-二氟烷氧基或α,α-二氟烷基硫代苯基砜的方法

    公开(公告)号:US4552984A

    公开(公告)日:1985-11-12

    申请号:US392884

    申请日:1982-06-28

    申请人: Michel Desbois

    发明人: Michel Desbois

    摘要: A process for the preparation of .alpha.,.alpha.-difluoroalkoxy or .alpha.,.alpha.-difluoroalkylthiophenyl sulfones, in which a polyhaloalkoxybenzene or a polyhaloalkylthiobenzene is reacted with a sulfonic acid, a derivative or a precursor of this acid, in the presence of boron trifluoride in an amount such that the absolute pressure of the boron trifluoride within the reaction vessel exceeds 1 bar, and in the presence of hydrofluoric acid as a solvent. The resultant products are useful as intermediates in the synthesis of compounds having a phytosanitary (e.g., herbicidal) or pharmaceutical activity.

    摘要翻译: 一种制备α,α-二氟烷氧基或α,α-二氟烷基硫代苯基砜的方法,其中多卤代烷氧基苯或多卤代烷硫基苯与磺酸,该酸的衍生物或前体在三氟化硼存在下在 使得反应容器内的三氟化硼的绝对压力超过1巴,在作为溶剂的氢氟酸存在下进行。 所得产物可用作合成具有植物检疫(例如除草)或药物活性的化合物的中间体。

    Perfluoroalkyl phenols and naphthols
    50.
    发明授权
    Perfluoroalkyl phenols and naphthols 失效
    全氟烷基酚和萘酚

    公开(公告)号:US4429162A

    公开(公告)日:1984-01-31

    申请号:US344681

    申请日:1982-02-01

    摘要: The instant invention relates to compounds of the formula ##STR1## wherein each R.sub.f is independently straight or branched chain perfluoroalkyl of 2 to 18 carbon atoms or perfluoroalkoxy-perfluoroalkyl of 4 to 18 carbon atoms;each R.sub.1 is independently straight or branched chain alkylene of 1 to 12 carbon atoms, alkylenethioalkylene of 2 to 12 carbon atoms, alkyleneoxyalkylene of 2 to 12 carbon atoms, or alkyleneiminoalkylene of 2 to 12 carbon atoms where the imino nitrogen atom contains as a third substituent, hydrogen or alkyl of 1 to 6 carbon atoms;R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, chloro, bromo, alkyl of 1 to 6 carbon atoms, alkenyl of 2 to 6 carbon atoms, hydroxyalkyl of 1 to 6 carbon atoms or alkoxy of 1 to 6 carbon atoms, and R.sub.2 and R.sub.3 additionally may, together with the carbon atoms to which they are attached, form a fused benzo ring;R.sub.5 is hydrogen, or alkyl of 1 to 6 carbon atoms which is unsubstituted or substituted by hydroxy, alkoxy of 1 to 6 carbon atoms or phenyl;x is 0, 1 or 2; and the alkali metal, alkaline earth metal, ammonium or amine salt thereof. These compounds are useful as surfactants, water repellents and intermediates.

    摘要翻译: 本发明涉及下式化合物:其中每个Rf独立地为2至18个碳原子的直链或支链全氟烷基或4至18个碳原子的全氟烷氧基 - 全氟烷基; 每个R 1独立地为具有1至12个碳原子的直链或支链亚烷基,2至12个碳原子的亚烷基亚硫酰基亚烷基,2至12个碳原子的亚烷基亚烷基氧基或2至12个碳原子的亚烷基亚氨基亚烷基,其中亚氨基氮原子含有第三个取代基 ,氢或1至6个碳原子的烷基; R2,R3和R4独立地是氢,氯,溴,1-6个碳原子的烷基,2-6个碳原子的烯基,1-6个碳原子的羟基烷基或1-6个碳原子的烷氧基,R2和R3另外 可以与它们所连接的碳原子一起形成稠合的苯并环; R5是氢或未取代或被羟基,1至6个碳原子的烷氧基或苯基取代的1至6个碳原子的烷基; x是0,1或2; 及其碱金属,碱土金属,铵或胺盐。 这些化合物可用作表面活性剂,防水剂和中间体。