申请人:KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
公开号:EP0279096A2
公开(公告)日:1988-08-24
Benzyl ether compounds represented by the general formula (i):
wherein R represents a branched alkyl group of from 4 to 8 carbon atoms, a cycloalkyl group of from 4 to 8 carbon atoms, an alkyl group of from 1 to 3 carbon atoms substituted by an alicyclic group of from 3 to 7 carbon atoms, an aralkyl group of from 7 to 9 carbon atoms, an alkyl group of from 2 to 4 carbon atoms substituted by an alkoxy group of from 1 to 4 carbon atoms, an unsaturated alkyl group of from 3 to 6 carbon atoms, a straight-chain alkyl group of from 2 to 8 carbon atoms substituted by from 1 to 15 fluorine atoms or a branched alkyl group of from 3 to 8 carbon atoms substituted by from 1 to 15 fluorine atoms and X represents a nitro group or an amino group; provided that, when X is a nitro group, R is neither an aralkyl group nor an ethyl group substituted by fluorine atom(s); are intermediates useful in the preparation of 1,2,4-triazole-3-carboxamide herbicides.
通式(i)代表的苄基醚化合物:
其中 R 代表 4 至 8 个碳原子的支链烷基、4 至 8 个碳原子的环烷基、被 3 至 7 个碳原子的脂环基取代的 1 至 3 个碳原子的烷基、7 至 9 个碳原子的芳烷基、被 1 至 4 个碳原子的烷氧基取代的 2 至 4 个碳原子的烷基、3至6个碳原子的不饱和烷基、被1至15个氟原子取代的2至8个碳原子的直链烷基或被1至15个氟原子取代的3至8个碳原子的支链烷基,X代表硝基或氨基;但当 X 为硝基时,R 既不是芳烷基,也不是被氟原子取代的乙基;这些中间体可用于制备 1,2,4-三唑-3-甲酰胺除草剂。