| 摘要 |
A trifluoromethylpyridine of the formula Ib <IMAGE> (ib) where the substituents have the following meanings: R1 is chlorine or fluorine; R2 is halogen; and R3 is C1-C6-alkyl, C2-C6-alkenyl or C2-C6-alkynyl, said groups being optionally substituted with 1 to 6 halogen atoms, C3-C6-cycloalkyl which is optionally substituted with 1 to 3 C1-C3-alkyl radicals, C1-C6-cyanoalkyl, C1-C4-alkoxy-C2-C6-alkyl, 3-oxetanyl, carboxyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C4-alkoxy-C2-C4-alkoxycarbonyl-C1-C6-alkyl, aminocarbonyl-C1-C6-alkyl, C1-C4-alkylaminocarbonyl-C1-C6-alkyl, C1-C4-dialkylaminocarbonyl-C1-C6-alkyl, C2-C4-alkenylaminocarbonyl-C1-C6-alkyl, C3-C4-alkynylaminocarbonyl-C1-C6-alkyl, C1-C4-alkyl-C3-C4-alkenylaminocarbonyl-C1-C6-alkyl, C1-C4-alkyl-C3-C4-alkynylaminocarbonyl-C1-C6-alkyl, C3-C6-( alpha -alkylalkylidene)iminoxy-C2-C6-alkyl, cyclopropylmethyl, C1-C6-alkylamino, C1-C6-dialkylamino, C1-C6-alkylideneimino or alpha -(C1-C4-alkyl)-C2-C6-alkylideneimino; and halogen is fluorine, chlorine, bromine or iodine.
|
