申请人:NIHON BAYER AGROCHEM K.K.
公开号:EP0643048A2
公开(公告)日:1995-03-15
The present invention relates to novel cyano-containing pyrimidine derivatives of the general formula (I)
wherein
R1 represents halogen, C1-4-alkyl, C1 -4-alkoxy, halogeno-C, -4-alkyl, or halogeno-C1-4-alkoxy,
R2 represents halogen, C1-4-alkoxy, halogeno-C1-4-alkyl, or halogeno-C1-4-alkoxy,
R3 represents halogen, hydroxy, or an oxo group formed together with R4 or
R3 represents one of the following groups represented by
and-O-S02-R6,
R4 represents hydrogen or an oxo group formed together with R3,
R5 represents hydrogen or in each case an optionally substituted or unsubstituted C1-20 -alkyl, C2-20- alkenyl, C2-2o-alkynyl, C1-4-alkoxycarbonyl, C3-7-cycloalkyl, or carboxyl or phenyl,
R5 represents an optionally substituted or unsubstituted five- or six-membered heterocyclic ring, or an optionally substituted bicyclic group formed by condensation of a five or six-membered heterocyclic ring with phenyl, and
R6 represents in each case an optionally substituted or unsubstituted C1-20-alkyl, C2-2o-alkenyl, C2-20- alkynyl or phenyl;
to processes for their preparation and to their use as herbicides.
本发明涉及一般式(I)的新型含氰基嘧啶衍生物,
其中
R1代表卤素,C1-4-烷基,C1-4-烷氧基,卤代C1-4-烷基,或卤代C1-4-烷氧基,
R2代表卤素,C1-4-烷氧基,卤代C1-4-烷基,或卤代C1-4-烷氧基,
R3代表卤素,羟基,或与R4一起形成的氧代基,
R3代表以下所示的一种基团之一
和-O-SO2-R6,
R4代表氢或与R3一起形成的氧代基,
R5代表氢或分别是一个可选择取代或未取代的C1-20-烷基,C2-20-烯基,C2-20-炔基,C1-4-烷氧羰基,C3-7-环烷基,或羧基或苯基,
R5代表一个可选择取代或未取代的五元或六元杂环,或由五元或六元杂环与苯环缩合形成的可选择取代的双环基团,以及
R6代表分别是一个可选择取代或未取代的C1-20-烷基,C2-20-烯基,C2-20-炔基或苯基;
以及它们的制备方法和作为除草剂的用途。