The invention concerns novel compounds of the formula
wherein A, B, D and E are chosen from hydrogen, halogen, C1 to C6 alkyl, C1 to C6 haloalkyl and C, to C6 alkoxy and Z is a tertiary or quaternary amino group.
The compounds are useful intermediates for the preparation of pyrethroids. In further embodiments the invention provides processes for the preparation of the compounds of formula I and processes for the synthesis of pyrethroids utilizing the compounds of formula I.
本发明涉及式如下的新型化合物
其中 A、B、D 和 E 选自氢、卤素、C1 至 C6 烷基、C1 至 C6 卤代烷基和 C 至 C6 烷氧基,Z 为三级或四级
氨基。
这些化合物是制备拟
除虫菊酯的有用中间体。在进一步的实施方案中,本发明提供了制备式 I 化合物的工艺和利用式 I 化合物合成拟
除虫菊酯的工艺。