Pyrimidine derivatives are very important molecules in biology and have many applications in the areas of pesticide [1, 2] and pharmaceutical agents [3, 4] such as imazosulfuron, ethirmol and mepanipyrim [5]. Recently,(4-trifluormethylpyrazolyl) pyrimidines [6, 7] and 1, 2, 4-triazolo [1, 5-a] pyrimidine ether compounds [8] have been found to exhibit excellent herbicidal activity against a broad range of weeds. Furthermore, a new series of highly ...
