申请人:Rohm and Haas Company
公开号:US05629264A1
公开(公告)日:1997-05-13
A class of 2-aryl-5,6-dihydropyrimidinones and compositions thereof which are useful in the control of weeds is of the general formula ##STR1## wherein Ar is a substituted or unsubstituted aryl or heteroaryl; R.sup.3 is an optionally substituted alkyl, alkenyl or alkynyl; R.sup.5a and R.sup.5b are each independently a hydrogen atom, halo, cyano or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy or alkylthio; R.sup.6a and R.sup.6b are each independently a hydrogen atom, halo, cyano, an optionally substituted alkyl, alkenyl, alkynyl, alkoxy or alkylthioalkyl, cycloalkyl, optionally substituted aryl, aryloxy, heterocyclyl or aralkyl, alkylamino, dialkylamino or dialkylaminocarbonyl; R.sup.5a and R.sup.6a taken together with the carbon atoms to which they are attached may form a fused 4-7 member ring containing 2-5 methylenes; and X is an oxygen or a sulfur atom.
一类2-芳基-5,6-二氢嘧啶酮及其组合物,用于控制杂草,其一般化学式为##STR1##其中Ar是取代或未取代的芳基或杂环芳基;R.sup.3是可选择取代的烷基,烯基或炔基;R.sup.5a和R.sup.5b分别独立地是氢原子,卤素,氰基或可选择取代的烷基,烯基,炔基,烷氧基或硫代烷基;R.sup.6a和R.sup.6b分别独立地是氢原子,卤素,氰基,可选择取代的烷基,烯基,炔基,烷氧基或硫代烷基,环烷基,可选择取代的芳基,芳氧基,杂环烷基或芳基烷基,烷基氨基,二烷基氨基或二烷基氨基甲酰基;R.sup.5a和R.sup.6a与它们连接的碳原子一起可以形成含有2-5个亚甲基的融合4-7环;X是氧原子或硫原子。