- Synthesis and characterization of some new imidazo [2, 1-a] pyrazolo [3,4-d] thiazoles as potentials fungicide
-
The new cis-3,3a-imidazo[2,1-a]-pyrazolo[3,4-d] thiazoles (11a-1) have been synthesized by refluxing a mixture of 2-(p-ethoxy arylidene-5,6-dehydro imidazo [2,1-a]-thiazolidene-3-one(11af) with hydrazine hydrate or 2,4-di-nitro phenyl hydrazine and anhydr
- Mishra, Atma Ram,Srivastava, Vivek,Shahma, Abu
-
p. 1457 - 1461
(2013/02/23)
-
- Novel bridgehead nitrogen heterocycles: Synthesis and antimicrobial activity of 2H-imidazopyrazolothiazoles
-
Synthesis of 3-substituted 3,3a,6,7-tetrahydro-2H-imidazopyrazolothiazoles (IIIa) and their 2-phenyl derivatives (IIIb) have been achieved in a single step by treating 2-arylidene-5,6-dihydroimidazothiazolidin-3-ones (II) with hydrazine and phenylhydrazine, respectively.Compounds II in turn have been obtained by condensing 2-mercaptoimidazoline with ethyl chloroacetate and aldehydes in the presence of pyridine and piperidine.Compounds III constitute a novel and hitherto unknown heterocyclic system.The antibacterial and antifungal activities of IIIa and IIIb have also been determined.
- Mohan, Jag,Kiran
-
p. 898 - 900
(2007/10/02)
-