申请人:Zeneca Limited
公开号:US06015905A1
公开(公告)日:2000-01-18
A process for preparing 2-(6-substituted pyrid-2-yloxymethyl)phenyacetates especially useful as intermediates for producing agricultural fungicides. The invention provides a compound having the formula (I): wherein A and D are independently selected from the group comprising halo, hydroxy, halo(C.sub.1-4)alkyl, C.sub.1-4 alkoxy, thio(C.sub.1-4)alkoxy, halo(C.sub.1-4)alkoxy, phenyl, phenoxy, nitro, amino, aclyamino, cyano, carboxy, C.sub.1-4 alkoxycarbonyl and C.sub.1-4 alkylcarbonyloxy, or D is C.sub.1-4 alkyl, and m is 0 or an integer of from 1 to 3. The process comprises treating a compound of formula (II): ##STR1## wherein A, D and m are defined as above and M is a metal atom, with a compound of formula (III): ##STR2## wherein L is a leaving group.
一种制备2-(6-取代吡啶-2-氧甲基)苯乙酸酯的方法,特别适用于用作生产农药杀菌剂的中间体。该发明提供了具有以下结构式(I)的化合物:其中A和D分别独立地选择自卤素、羟基、卤代(C.sub.1-4)烷基、C.sub.1-4烷氧基、硫代(C.sub.1-4)烷氧基、卤代(C.sub.1-4)烷氧基、苯基、苯氧基、硝基、氨基、乙酰氨基、氰基、羧基、C.sub.1-4烷氧羰基和C.sub.1-4烷基羰氧基的群组中,或者D为C.sub.1-4烷基,m为0或者为1到3的整数。该方法包括用以下结构式(II)的化合物处理:其中A、D和m的定义如上所述,M为金属原子,用以下结构式(III)的化合物:其中L为离去基团。