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Synthesis of Substituted 1,2,4-Triazoles and 1,3,4-Thiadiazoles
Chemistry of Heterocyclic Compounds, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
T. R. Hovsepian +3 more
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Recent Advances in the Chemistry of 1,3,4-Thiadiazoles
1968Publisher Summary This chapter discusses homologs, functional groups, physical properties, and the uses of 1, 3, 4-thiadiazole. The development of 1, 3, 5- thiadiazole chemistry is linked to the discovery of phenylhydrazine and hydrazine. The numbering of the 1, 3, 4-thiadiazole ring follows from 1.
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Mesoionic 2-acylimino-1,3,4-thiadiazoles
Chemistry of Heterocyclic Compounds, 1975Mesoionic 2-carbamoylimino-, 2-thiocarbamoylimino-, and 2-methacryloylmnno-1,3,4-thiadiazoles were obtained by reaction of α-alkylthioacylhydrazines with the appropriate acyl isothiocyanates. Mesoionic 1,3,4-thiadiazole-2-thione is also formed in the reaction with diethylthiocarbamoyl isothiocyanate.
A. Ya. Lazaris, A. N. Egorochkin
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A new synthesis of symmetrical 2,5‐diaryl‐1,3,4‐thiadiazoles
Journal of Heterocyclic Chemistry, 1983AbstractTreatment of aromatic aldehydes with sulfur and hydrazine hydrate in the ratio 1:2:3, respectively, under the Willgerodt conditions affords the title compounds in excellent yields and in a good state of purity. Under the same conditions 2‐chloro and 2,6‐dichlorobenzaldehyde yield 3H‐1,2‐benzodithiole‐3‐thione and bis‐(2,6‐dichlorobenzyl ...
G. Mazzone +3 more
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ChemInform, 2011
AbstractNovel 2‐halo‐5‐aryloxymethyl‐thiadiazoles (II) are prepared by diazotization of aminothiadiazoles (I) in the presence of an acid‐catalyst under copper‐free conditions.
Xi‐Cun Wang +3 more
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AbstractNovel 2‐halo‐5‐aryloxymethyl‐thiadiazoles (II) are prepared by diazotization of aminothiadiazoles (I) in the presence of an acid‐catalyst under copper‐free conditions.
Xi‐Cun Wang +3 more
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Tetrahedron, 2013
Abstract Upon reaction of 4,5-disubstituted-N-arylaminoimidazole-2-thiones with isocyanides in the presence of azodicarboxylates (1.2 equiv) at rt, the imidazo[2,1-b][1,3,4]thiadiazoles were formed as the only reaction products in very good yields, whereas by using higher reaction temperatures, along with the imidazo[2,1-b][1,3,4]thiadiazoles, the ...
Zarganes-Tzitzikas, T. +5 more
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Abstract Upon reaction of 4,5-disubstituted-N-arylaminoimidazole-2-thiones with isocyanides in the presence of azodicarboxylates (1.2 equiv) at rt, the imidazo[2,1-b][1,3,4]thiadiazoles were formed as the only reaction products in very good yields, whereas by using higher reaction temperatures, along with the imidazo[2,1-b][1,3,4]thiadiazoles, the ...
Zarganes-Tzitzikas, T. +5 more
openaire +2 more sources