- 1,4-Cycloaddition of Isothiocyanates to Azomethines and Fungitoxicity of Resulting 1,3,4-Thiadiazolo-s-triazine-5(6H,7H)-thiones
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Several 2,6,7-trisubstituted 1,3,4-thiadiazolo-s-triazine-5(6H,7H)-thiones have been prepared by 1,4-cycloaddition of aryl isothiocynates to 5-aryl(aryloxymethyl-2-benzylidene-amino-1,3,4-thiadiazoles (3a-e).The fungicidal activity of compounds has
- Singh, H.,Yadav, L. D. S.,Sharma, K. S.
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p. 480 - 481
(2007/10/02)
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- Unsaturated Compounds containing Nitrogen. Part 4. Further Reactions of 1-Chloro-2,3-diazabutadienes with S-Nucleophiles
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1-Chloro-1,4-diaryl-2,3-diazabutadienes (Ar1CCl=NN=CHAr2), prepared by the reaction of thionyl chloride with aroylhydrazones (Ar1CONHN=CHAr2), react with thiosemicarbazide or thiocarbohydrazide to give 2-arylidenehydrazino-5-aryl-1,3,4-thiadiazoles, and with potassium thiocyanate to give 1-thiocyanato-1,4-diaryl-2,3-diazabutadienes which isomerize thermally to arylideneamino-5-aryl-1,3,4-thiadiazoles. 1-Chloro-1,4-diphenyl-2,3-diazabutadiene reacts with potassium ethylxanthate to give a 1-ethylxanthyl-2,3-diazabutadiene which on pyrolysis yields 2,5-diphenyl-1,3,4-thiadiazole.
- Flowers, William T.,Robinson, John F.,Taylor, David R.,Tipping, Anthony E.
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p. 349 - 355
(2007/10/02)
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