Add to ORKGalpha-diamines, such as ethylendiamine and o-phenylendiamine, add to 3,4-aryl-disubstituted 1,2,5-thiadiazole 1,1-dioxides to give dihydropyrazines or quinoxalines, respectively and sulfamide. The new compound acenaphtho [5,6-b]-2,3-dihydropyrazine was synthesized and characterized. The addition of ethylendiamine to 3,4-diphenyl-1,2,5-thiadiazoline 1,1-dioxide gives 3,4-disubstituted thiadiazoildine 1,1-dioxide, dihydropyrazines, or pyrazines, depending on the reaction condition used. The reactions were followed by cyclic voltammetry and NMR spectroscopy which, in some cases, allowed the detection of the thiadiazolidine intermediate. Copyright (c) 2008 John Wiley & Sons, Ltd
Some simple reactions using commercially available chemicals were used in the preparation of new bio...
The new compound 7-methylpyrazolo[4,5-e][1,2,4]thiadiazin-3(2H,4H)-one1,1-dioxide (5) was synthesize...
<div><p></p><p>The desired 1,3,4-thiadiazole compounds bearing different substituents were obtained ...
alpha-diamines, such as ethylendiamine and o-phenylendiamine, add to 3,4-aryl-disubstituted 1,2,5-th...
A new synthesis of 3,4-diphenyl-4-aryl-1,2,5-thiadiazolines 1,1-dioxide through the addition of arom...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
New series of 1,3,4-thiadiazoles have been prepared via reaction of 1,3,4-thiadiazolenaminones 1 wit...
New series of 1,3,4-thiadiazoles have been prepared via reaction of 1,3,4-thiadiazolenaminones 1 wit...
A new synthesis of 3,4-diphenyl-4-aryl-1,2,5-thiadiazolines 1,1-dioxide through the addition of arom...
3-Diethylamino-4-(4-methoxyphenyl)-isothiazole 1,1-dioxide (1) was made to react with arylalkyl-and ...
The study involved synthesis of six and five- membered rings from hetero cyclic compounds containing...
It was shown that the reaction of 2-cyanothioacetamides with hydrazine involves both cyano- and thio...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
The synthesis of thiadiazolopyrimidines by heating a-amino-l, 3,4-thiadiazoles with 1,Sdicarbonyl co...
Some simple reactions using commercially available chemicals were used in the preparation of new bio...
The new compound 7-methylpyrazolo[4,5-e][1,2,4]thiadiazin-3(2H,4H)-one1,1-dioxide (5) was synthesize...
<div><p></p><p>The desired 1,3,4-thiadiazole compounds bearing different substituents were obtained ...
alpha-diamines, such as ethylendiamine and o-phenylendiamine, add to 3,4-aryl-disubstituted 1,2,5-th...
A new synthesis of 3,4-diphenyl-4-aryl-1,2,5-thiadiazolines 1,1-dioxide through the addition of arom...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
New series of 1,3,4-thiadiazoles have been prepared via reaction of 1,3,4-thiadiazolenaminones 1 wit...
New series of 1,3,4-thiadiazoles have been prepared via reaction of 1,3,4-thiadiazolenaminones 1 wit...
A new synthesis of 3,4-diphenyl-4-aryl-1,2,5-thiadiazolines 1,1-dioxide through the addition of arom...
3-Diethylamino-4-(4-methoxyphenyl)-isothiazole 1,1-dioxide (1) was made to react with arylalkyl-and ...
The study involved synthesis of six and five- membered rings from hetero cyclic compounds containing...
It was shown that the reaction of 2-cyanothioacetamides with hydrazine involves both cyano- and thio...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
In this work, thiadiazole derivatives were prepared by taking advantage of active sites in (2-amino-...
The synthesis of thiadiazolopyrimidines by heating a-amino-l, 3,4-thiadiazoles with 1,Sdicarbonyl co...
Some simple reactions using commercially available chemicals were used in the preparation of new bio...
The new compound 7-methylpyrazolo[4,5-e][1,2,4]thiadiazin-3(2H,4H)-one1,1-dioxide (5) was synthesize...
<div><p></p><p>The desired 1,3,4-thiadiazole compounds bearing different substituents were obtained ...