申请人:Ciba-Geigy Corporation
公开号:US04958030A1
公开(公告)日:1990-09-18
3-Phenylpyrrole derivatives of formula I ##STR1## wherein X is cyano, --CO--R.sub.3, --CO--OR.sub.3 or ##STR2## R.sub.1 and R.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, nitro, cyano, halogen or C.sub.1 -C.sub.6 haloalkyl, or R.sub.1 and R.sub.2, when taken together, are methylenedioxy or difluoromethylenedioxy, R.sub.3 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, phenyl or benzyl, or phenyl or benzyl which are each substituted by halogen, methyl, methoxy or methylthio, and R.sub.4 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, phenyl or benzyl, or phenyl or benzyl which are each substituted by halogen, methyl, methoxy or methylthio, are prepared by (a) reacting N-(p-tolylsulfonyl)methyl formamide, in an inert solvent and in the presence of an organic base, with phosphoroxy chloride, mixing the reaction solution with water, separating the aqueous phase of the resultant two-phase mixture, and (b) reacting the organic phase containing (p-tolylsulfonyl)methyl isocyanide direct with a compound of formula II ##STR3## wherein X, R.sub.1 and R.sub.2 are as defined for formula I, Y is --CO--NHR.sub.4, --CO--R.sub.5 or --S--R.sub.5, R.sub.5 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, phenyl or benzyl, or phenyl or benzyl which are each substituted by halogen, methyl, methoxy or methylthio, and R.sub.4 is as defined for formula I, in the presence of a base.
公式I的3-苯基吡咯衍生物,其中X为氰基,-CO-R.sub.3,-CO-OR.sub.3或,R.sub.1和R.sub.2各自独立地为氢,C.sub.1-C.sub.6烷基,C.sub.1-C.sub.6烷氧基,C.sub.1-C.sub.6烷硫基,硝基,氰基,卤素或C.sub.1-C.sub.6卤代烷基,或当R.sub.1和R.sub.2一起取时,为亚甲二氧基或二氟亚甲二氧基,R.sub.3为C.sub.1-C.sub.6烷基,C.sub.1-C.sub.6卤代烷基,苯基或苄基,或被卤素,甲基,甲氧基或甲硫基取代的苯基或苄基,R.sub.4为氢,C.sub.1-C.sub.6烷基,C.sub.1-C.sub.6卤代烷基,苯基或苄基,或被卤素,甲基,甲氧基或甲硫基取代的苯基或苄基,通过(a)在惰性溶剂中,在有机碱存在下,将N-(对甲苯磺酰基)甲基甲酰胺与磷酰氯反应,将反应溶液与水混合,分离得到两相混合物的水相,然后(b)在碱存在下,将含有(对甲苯磺酰基)甲基异氰酸酯的有机相直接与公式II的化合物反应,其中X,R.sub.1和R.sub.2如公式I所定义,Y为-CO-NHR.sub.4,-CO-R.sub.5或-S-R.sub.5,R.sub.5为C.sub.1-C.sub.6烷基,C.sub.1-C.sub.6卤代烷基,苯基或苄基,或被卤素,甲基,甲氧基或甲硫基取代的苯基或苄基,R.sub.4如公式I所定义。