N-(5-巯基-1，3，4-噻二唑-2-基)-N'-取代苯甲酰基脲与取代的苯氧乙酰基脲的合成与生物活性

Synthesis and Biological Activity of N-(5-Mercapto-1,3,4-thiadiazol-2-yl)-N'-(un)substituted Benzoylureas and (Un)substituted Phenoxyacetylureas

通过2-氨基-5-巯基-1,3,4-噻二唑与取代苯甲酰基异氰酸酯及取代苯氧乙酰基异氰酸酯反应,合成了21种新的取代苯甲酰基脲与取代苯氧乙酰基脲,其结构用红外光谱、核磁共振氢谱和元素分析进行了确证,初步的生物活性测定试验表明,部分目标化合物具有良好的植物生长调节活性.

Twenty-one new （un）substituted benzoylureas and （un）substituted phenoxyacetylureas have been synthesized by the reaction of 2-amino-5-mercapto-1,3,4-thiadiazole with （un）substituted benzoyl isocyanates and （un）substituted phenoxyacetyl isocyanates, respectively, and their structures were confirmed by IR, ^1H NMR spectra and elemental analysis. The preliminary biological activity tests showed that some of the title compounds had good activity as plant growth regulators.