Reactions with hydrazonoyl halides 65: Synthesis of some new 1,3,4-thiadiazoles and triazolino[4,3-a]pyrimidines containing pyrazole moiety

Reactions with hydrazonoyl halides 66: Synthesis of some new 1,3,4-thiadiazoles, triazolino[4,3-a]pyrimidines and isoxazolo[3,4-d]pyridazines containing coumarin moiety

“…On the other hand, 1,3,4-thiadiazole derivatives have become very useful compound in medicine, agriculture and in many fields of technology [7]. As an extension of our study [8,[9][10][11][12][13][14][15] and a part of our program aiming at the synthesis of different heterocyclic derivatives, herein we report the convenient synthesis of 2,3-dihydro-1,3,4thiadiazoles, triazolino [4,3-a]pyrimidines and isoxazolo [3,4d]pyridazines containing coumarins moities.…”

Synthesis of 5-arylazothiazoles, pyridines and thieno[2,3-b]pyridines derivatives containing 1,2,3-triazole moiety

“…On the other hand, thienopyrimidine derivatives are characterized by a very broad spectrum of biological activities such as antiallergic [15], antiatherosclerotic [16], antibacterial [17][18][19], anticancer [20], antiviral [21,22], antihypertensive [23,24], antidepressant [25], antihistaminic [26], antimicrobial [27][28][29][30][31] and neurotropic [32] activities. As an extension of our study [33][34][35][36][37][38][39][40][41] and as a part of our program aiming at the synthesis of different heterocyclic derivatives, we report herein the convenient synthesis of 5-arylazothiazoles, synthesis of pyridines and thienopyridine derivatives containing 1,2,3triazole moiety…”

Convenient synthesis of some new pyrazolo[5,1-c]triazines, isoxazolo[3,4-d] pyrimidine and pyridine derivatives containing benzofuran moiety

“…In continuation of our interest in the synthesis of heterocycles [12][13][14][15][16], we report herein a convenient method for the synthesis of pyrazolo [5,l-c]triazines, [l, 2,4]triazolo [4,3-c] triazine, benzo [4,5]imidazo [2,1-c]triazine, isoxazole, isoxazolo [3,4-d]pyrimidine, pyridines, and pyrazoles containing benzofuran moiety.…”