Synthesis of benzylaminopyrimidines and their fungicidal activities against wheat brown rust and barley powdery mildew
作者:Yoshinori Yamanaka、Masaru Moritomo、Katsutoshi Fujii、Toshinobu Tanaka、Yasuhisa Fukuda、Keiichiro Nishimura
DOI:10.1002/(sici)1096-9063(1998110)54:3<223::aid-ps814>3.0.co;2-r
日期:1998.11
Members of a new class of fungicide containing benzyl-aminopyrimidine as a core structure were synthesized and their fungicidal potencies against wheat brown rust, Puccinia recondita, and barley powdery mildew, Erysiphe graminis, were assessed. Among these fungicides, N-(fluoroalkoxy or fluorophenoxybenzyl)-4-pyrimidinamines showed notable preventive activities. The potency of the new pyrimidines was increased when a difluoromethoxy or tetrafluorophenoxy group was introduced at the 4- or 3-position of the phenyl moiety and a methyl or ethyl group was introduced at the benzyl position. Structure-activity relationships are discussed. (C) 1998 Society of Chemical Industry.