A herbicidally active triazine derivative has the formula :
wherein each of R1 and R2, which may be the same or different, represents a hydrogen atom ; a C1-C6 alkyl group; a C3-C6 alkenyl group; a C3-C6 alkynyl group; a halo-C1-C6 alkyl group; a C1-C6 alkoxy-C1-C6 alkyl group ; a C3-C6 alkenyloxy-C1-C6 alkyl group ; a C3-C6 alkynyloxy-C1-C6 alkyl group ; a C1-C6 alkoxycarbonyl-C1-C6 alkyl group; a C3-C6 alkenyloxycarbonyl-C1-C6 alkyl group; a C3-C6 alkynyloxycarbonyl-C1-C6 alkyl group; a cyano-C1-C6 alkyl group; a cyclo-C3-C8 alkyl group; a group represented by the formula,
一种具有除草活性的三嗪衍
生物的
化学式为:其中R1和R2分别表示氢原子;C1-C6烷基;C3-C6烯基;C3-C6炔基;卤代C1-C6烷基;C1-C6烷氧基-C1-C6烷基;C3-C6烯氧基-C1-C6烷基;C3-C6炔氧基-C1-C6烷基;C1-C6烷氧羰基-C1-C6烷基;C3-C6烯氧羰基-C1-C6烷基;C3-C6炔氧羰基-C1-C6烷基;
氰基-C1-C6烷基;环C3-C8烷基;由以下公式表示的基团: