4-Thiadiazole,2,5-bis

Thiadiazole, 2,5-bis(tert-nonyldithio)-. 2,5-Bis(tert-nonytclithio)-1,3,4-thiadiazole EINECS 289-493-3 ... 

Pyridinium iodide, 4,4 (l,3,4-thiadiazole-2,5-diyl)-bis(l-methyl)-reduction, 6, 564 Pyridinium ion, Af-methyl-as metabolite of pyridine, 1, 234 Pyridinium ions hydrogen bonding to water mass spectrometry, 2, 135 magnetic circular dichroism, 2, 129 NMR, 2, 121... 

Cyano-l,2,4-thiadiazole-5-carboximidate 5-Imino-A3-l,2,4-thiadiazoline 3,5-Bis(diphenylamino)-l,2,4-thiadiazole... 

Electrochemical impedance spectroscopy was used to determine the effect of isomers of 2,5-bis( -pyridyl)-l,3,4-thiadiazole 36 (n 2 or 3) on the corrosion of mild steel in perchloric acid solution <2002MI197>. The inhibition efficiency was structure dependent and the 3-pyridyl gave better inhibition than the 2-pyridyl. X-ray photoelectron spectroscopy helped establish the 3-pyridyl thiadiazoles mode of action toward corrosion. Adsorption of the 3-pyridyl on the mild steel surface in 1M HCIO4 follows the Langmuir adsorption isotherm model and the surface analysis showed corrosion inhibition by the 3-pyridyl derivative is due to the formation of chemisorbed film on the steel surface. 

The reaction of 1,4,2-dithiazolium salts with amines also leads to thiadiazoles. Thus treatment of the A,A-diethylamino dithiazolium salt (177) with an excess of hydrazine (Scheme 32) afforded 2,5-bis(diethylamino)-l,3,4-thiadiazole (180) together with thiobenzamide. The mechanism postulated is as follows in the first step, hydrazine causes rupture of the ring to liberate A,A-diethyl-thiosemicarbazide (178) which in turn reacts with another molecule of (177) to give the intermediate... 

Arylamino-3-nitroamino-l,2,4-thiadiazoles l,3-Bis[3-alkyl(or aryl)-l,2,4-thiadiazol-5-yl]triazens... 

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