申请人:Rhone-Poulenc Rorer S.A.
公开号:US05424439A1
公开(公告)日:1995-06-13
This invention relates to the process for the preparation of a method for preparing derivatives of formula (I), ##STR1## wherein R is an alkyl, alkoxy, alkylthio, polyfluoroalkyl, polyfluoroalkoxy, alkenyl, phenyl, alkylsulphonyl, alkoxycarbonyl, amino, cyano, sulphonamide or dialkylcarbamyl radical, characterized in that a derivative of formula (II), ##STR2## wherein R has the same meaning as in formula (I), is reacted with nitronium tetrafluoroborate and derivatives of formula (II).
这项发明涉及一种制备公式(I)衍生物的方法的过程,其中R是烷基、烷氧基、烷硫基、多氟烷基、多氟烷氧基、烯基、苯基、烷基磺酰基、烷氧羰基、氨基、氰基、磺酰胺基或二烷基氨基基团,其特征在于将公式(II)衍生物,其中R的含义与公式(I)中相同,与硝酸四氟硼酸盐和公式(II)衍生物发生反应。