申请人:ICI Americas Inc.
公开号:US05022915A1
公开(公告)日:1991-06-11
2,4-Diarylpyrimidines of the formula ##STR1## wherein R is selected from the group consisting of ##STR2## R.sub.1 and R.sub.2 are independently selected from the group consisting of H, Br, Cl, F, C.tbd.N, CF.sub.3 and OCF.sub.3 ; R.sub.3 is selected from the group consisting of H, C.sub.1 -C.sub.4 alkyl, CO.sub.2 CH.sub.3, CO.sub.2 CH.sub.2 CH.sub.3, CH.sub.2 Cl, CH.sub.2 OCH.sub.3, CH.dbd.CH.sub.2, C.sub.1 -C.sub.3 thioalkyl, and C.sub.1 -C.sub.3 alkoxy; R.sub.4 is selected from the group consisting of H, --OH, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 thioalkyl, C.sub.1 -C.sub.3 alkoxy; and R.sub.5 is selected from the group consisting of H and F are useful as herbicidal agents.
2,4-二芳基嘧啶的化学式为##STR1##其中R从##STR2##中选择;R.sub.1和R.sub.2分别从H、Br、Cl、F、C.tbd.N、CF.sub.3和OCF.sub.3中选择;R.sub.3从H、C.sub.1 -C.sub.4烷基、CO.sub.2 CH.sub.3、CO.sub.2 CH.sub.2 CH.sub.3、CH.sub.2 Cl、CH.sub.2 OCH.sub.3、CH.dbd.CH.sub.2、C.sub.1 -C.sub.3硫代烷基和C.sub.1 -C.sub.3烷氧基中选择;R.sub.4从H、--OH、C.sub.1 -C.sub.4烷基、C.sub.1 -C.sub.3硫代烷基和C.sub.1 -C.sub.3烷氧基中选择;R.sub.5从H和F中选择,作为除草剂是有用的。