Jiajun Zhu, Linghui He, Jin Luo
Jun 29, 2021
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Phosphorus, Sulfur, and Silicon and the Related Elements
Abstract
Abstract A facile approach for the synthesis of pyrimidine derivatives containing 1,2,4-triazole moiety via the reaction of substituted 2-phenoxypropane hydrazide with ethyl-N-(5-cyano-2-alkylthio-5-cyano-6-methylthiopyrimidin-4-yl) formimidate in refluxing 2-methoxyethanol is reported. The structures of the title compounds were identified by 1H NMR, 13C NMR, and HRMS. The configuration of compound 5a was confirmed by X-ray crystallography analysis. The preliminary herbicidal test indicated that some of the target compounds exhibited good inhibition activities against Brassica napus (rape) and Echinochloa crusgalli (barnyard grass). GRAPHICAL ABSTRACT