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Synthesis and insecticidal assessment of some innovative heterocycles incorporating a thiadiazole moiety against the cotton leafworm, Spodoptera littoralis

机译:含有噻二唑部分的创新杂环对棉叶虫 Spodoptera littoralis 的合成和杀虫作用评估

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New 2-cyano-N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide (1) was utilized as a versatile precursor for the synthesis of various heterocycles, such as pyrrole, pyridine, coumarin, thiazole, pyrido[2′,3′:3,4]pyrazolo[5,1-c]triazine, triazolo[5,1-c]triazine, aminopyrazole, thiophene, 1,3-dithiolane, triazolo[1,5-a]pyrimidine and benzo[d]imidazole derivatives. The newly synthesized compounds were identified by IR, MS, 1H NMR, 13C NMR, DEPT, H–H COSY, HMBC, and HSQC. Representative compounds of the synthesized products were examined and estimated as insecticidal agents against the cotton leafworm, Spodoptera littoralis.
机译:新的2-氰基- N -(5-乙基-1,3,4-噻二唑-2-基)乙酰胺(1)被用作合成各种杂环的通用前体,例如吡咯,吡啶,香豆素,噻唑,吡啶基[2',3':3,4]吡唑并[5,1- c ]三嗪,三唑并[5,1- c ]三嗪,氨基吡唑,噻吩,1,3-二硫杂环戊烷,三唑并[1,5- a ]嘧啶和苯并[ d ]咪唑衍生物。通过IR,MS, 1 H NMR, 13 C NMR,DEPT,H鉴定新合成的化合物–H COSY,HMBC和HSQC。对合成产物的代表性化合物进行了检查,并评估了它们对棉叶虫 Spodoptera littoralis 的杀虫作用。

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