Treatment of diethoxycarbonyl hydrazine derivatives with methyl bromoacetate/Cs(2)CO(3)/MeCN at 50 degrees C followed by heating to 80 degrees C resulted in N-N' bond cleavage to the corresponding carbamates.

Structure-activity relationship (SAR) studies on both the amide tail and the aryl A-ring of novel N-(5-aryl-1,3,4-thiadiazol-2-yl)amides led to a new class of insecticidal molecules active against sap-feeding insect pests. © 2016 Society of Chemical Industry.

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