Chen Huan-you
2011
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Journal
Modern Agrochemicals
Abstract
5-Hydroxy-2-(furan-2yl)-4H-1,3-benzodioxin-4-one was synthesized using 2,6-dihydroxybenzoic acid and 2-furylaldehyde as the primary material,and then 5-[(4,6-dimethoxy pyrimidine-2-oxy)-2-(furan-2yl)-4H-1,3-benzodioxole-4-one was prepared by the reaction of 5-hydroxy-2-(furan-2yl)-4H-1,3-benzodioxin-4-one and 2-methyl sulfonyl-4,6-dimethoxy pyrimidine in dry DMF solution,potassium carbonate as acid binding agent.Then pyribenzoxim was prepared by the reaction of 5-[(4,6-dimethoxy pyrimidine-2-oxy)-2-(furan-2yl)-4H-1,3-benzodioxole-4-one,benzo-phenone oxime and 2-methyl sulfonyl-4,6-dimethoxy pyrimidine in dry DMF solution and alkaline conditions.The total yield is 50.01%.