2013•Hecheng huaxueRequires access

Synthesis and Herbicidal Activities of 6-(Trifluoromethyl)pyrimidine-2,4(1H,3H)-dione Compounds

Huazheng Yang

Abstract

Ten 6-(trifluoromethyl)pyrimidine-2,4(1H,3H)-dione compoundes were synthesized by cyclization of trifluoroacetoacetate ethyl with substituted-urea.The structures were confirmed by 1H NMR and elemental analysis.The preliminary bioassay tests indicated that some compounds showed good herbicidal activities.3-(4-fluorobenzyl)-6-trifluoromethyl)pyrimidine-2,4(1H,3H)-dione exhibited herbicidal activities of 98% against Brassica napus at 100 μg·mL-1.

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Key concepts: Chemistry, Trifluoromethyl, Pyrimidine, Brassica, Proton NMR, Bioassay, Elemental analysis, Urea