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C07D285/00—Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
C07D285/125—1,3,4-Thiadiazoles; Hydrogenated 1,3,4-thiadiazoles with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical
C07D285/135—Nitrogen atoms
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Organic Chemistry
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Agricultural Chemicals And Associated Chemicals
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Title cpds. are of formula (I): (where R1, R3 = Cl, Br, I or methyl; R2 = H, cl, Br, I or methyl; R4 = H or -COR5 and R5 =H, CF3, CHCl2-CH3OOC, C2H5OOC-phenoxycarbonyl or carboxy) and salts of I when R5 = carboxy.