| 摘要 |
3-Phenylpyrrole derivatives of formula I <IMAGE> (I) wherein X is cyano, -CO-R3, -CO-OR3 or <IMAGE> R1 and R2 are each independently of the other hydrogen, C1-C6alkyl, C1-C6alkoxy, C1-C6alkylthio, nitro, cyano, halogen or C1-C6haloalkyl, or R1 and R2, when taken together, are methylenedioxy or difluoromethylenedioxy, R3 is C1-C6alkyl, C1-C6haloalkyl, phenyl or benzyl, or phenyl or benzyl which are each substituted by halogen, methyl, methoxy or methylthio, and R4 is hydrogen, C1-C6alkyl, C1-C6haloalkyl, 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 <IMAGE> (II) wherein X, R1 and R2 are as defined for formula I, Y is -CO-NHR4, -CO-R5 or -S-R5, R5 is C1-C6alkyl, C1-C6haloalkyl, phenyl or benzyl, or phenyl or benzyl which are each substituted by halogen, methyl, methoxy or methylthio, and R4 is as defined for formula I, in the presence of a base.
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