Abstract Two series of novel 2-[[1-(5-methyl-1-phenyl-5-substituted-1 H-pyrazol-4-yl)
ethylidene] hydrazono]-3-phenyl-2, 3-dihydro-1, 3, 4-thiadiazole derivatives and 2-[5-(4 …

In the present study, a rapid, less expensive, clean and environmental friendly route to
synthesis new pyrazoles, pyrazolopyridazines and condensed pyrimidines was developed …

A large and valuable store of review literature on many aspects of the chemistry of
heterocyclic com-pounds has grown up over the last few decades. 1 However, the …

Successful implementation of ultrasound irradiation for the rapid synthesis of a novel series
of 3-[1-(4-substituted-5-(aryldiazenyl) thiazol-2-yl) hydrazono) ethyl]-2 H-chromen-2-ones 5a …

A novel series of 4-substituted 5-arylazo-2-[1-(pyrrol-3-yl) ethylidenehydrazinyl] thiazoles
and 5-arylazo-2-[1-(pyrrol-3-yl) ethylidenehydrazinyl]-2, 3-dihydrothiazol-3-amines was …

Reactions of hydrazonoyl halides and each of methyl 2-(1-(5-methyl-1-phenyl-1 H-1, 2, 3-
triazol-4-yl) ethylidene) hydrazine-1-carbodithioate and 2-(1-(5-methyl-1-phenyl-1 H-1, 2, 3 …

Reaction of 1, 3, 4oxadiazolylphenylthiourea 3 with hydrazonoyl halides gave the
corresponding 1, 3, 4oxadiazolylimino1, 3, 4thiadiazoles. Also, treatment of 3 with ethyl …

2-(3-(1 H-Indol-3-yl)-5-(p-tolyl)-4, 5-dihydro-1 H-pyrazol-1-yl)-4-substituted-5-(substituted
diazenyl) thiazoles and 2-(1 H-indol-3-yl)-9-substituted-4, 7-disubstituted pyrido [3, 2-e][1, 2 …

Coumarin derivatives containing pyrazolo [1, 5-a] pyrimidine, tetrazolo [1, 5-a] pyrimidine,
imidazo [1, 2-a] pyrimidine, pyrazolo [3, 4-d] pyrimidine, 1, 3, 4-thiadiazoles and thiazoles …

Reactions of ethylidenethiosemicarbazide 3 with DMAD 4 or substituted
methylenemalononitriles 8 gave thiazolidin-4-one 6 or 1, 3-thiazine derivatives (10, 11) …