Condensation of enynones readily available from cheap starting material with
pyrazolamines provides easy access to fluorescent 7-(trimethylsilylethynyl) pyrazolo [1, 5-a] …

Heterocyclic compounds with nitrogen atom play a key role in the normal life cycle of a cell.
Pyrazolopyrimidine is a privileged class of nitrogen containing fused heterocyclic compound …

Diamino-4-(3-trifluoromethylphenyldiazenyl)-1 H-pyrazole was used as a starting scaffold for
the synthesis of new pyrazole-based heterocycles to study their effects on the proliferation of …

An easy and efficient route for the synthesis of some tetrazolo [1, 5-a]-pyrimidine derivatives
was described through the reaction of sodium salts of formyl cycloalkanones with 5 …

Abstract A series of 2-phenyl-7-(aryl) pyrazolo [1, 5-a] pyrimidine-3-carbonitriles 11a–j and 2-
phenyl-7-(aryl) pyrazolo [1, 5-a] pyrimidine-3, 6-dicarbonitriles 16a–c was synthesized by …

Through task-specific design and synthesis of mesoporous catalysts, we introduce a novel
metal–organic framework serving as a heterogeneous catalyst. In this study, Co (BDC-NH …

A new carbon–carbon bond cleavage reaction was developed for the efficient synthesis of
multisubstituted pyrazolo [1, 5-a] pyrimidines. This base induced reaction of 1, 3, 5 …

Background Over the years, pyrazolopyrimidine derivatives have been recognized as
having antimicrobial activities. Recently, we reported different synthetic methods to prepare …

A new series of pyrazole, pyrimidine, pyrazolo [1, 5-a] pyrimidine, imidazo [1, 2-b] pyrazole
and pyrazolo [5, 1-b] quinazoline derivatives containing indane moiety are prepared by …

We reported herein efficient procedures for the synthesis of new piperazine-linked bis
(pyrido [2', 3': 3, 4] pyrazolo [1, 5-a] pyrimidines) using bis (benzofuran-enaminone) hybrid …