피리미딘기가 치환된 3,4,5,6-tetrahydrophthalimide 유도체를 합성하였고, 밭 조건에서 토양 및 경엽처리 제초 활성을 온실에서 조사하였다. 이 화합물들의 제초효과는 화본과 잡초에 비해 광엽 잡초에서 상대적으로 우수하였으며 피리미딘 치환체의 영향을 크게 받았다. N-[4-chloro-2-fluoro-5-(2-pyrimidinyloxy)-phenyl]-3,4,5,6-tetrahydrophthalimide가 가장 강한 제초활성을 나타내었을 뿐만 아니라, 60 g $ha^{-1}$ 약량의 토양처리에서 옥수수에 비교적 안전하였다.
A series of N-[4-chloro-2-fluoro-5-(2-(substituted)pyrimidinyloxy)phenyl]-3,4,5,6-tetrahydrophthalimides was synthesized, and the herbicidal activities of those derivatives were evaluated through pre- and post-emergence application under upland conditions in a greenhouse. The results showed that most compounds resulted in stronger herbicidal activities on broadleaf weeds than on grass weeds. The N-[4-chloro-2-fluoro-5-(2-pyrimidinyloxy)phenyl]-3,4,5,6-tetrahydrophthalimide showed the best weed control efficacy and marginal corn safety at a rate of 60 g/ha through pre-emergence application.
