An efficient synthesis of pyrazolo [1, 5-a] quinazolin-5 (4H)-ones and pyrazolo [1, 5-a] pyrido
[3, 2-e] pyrimidin-5 (4H)-ones is reported from the reaction of 2-haloaroyl chlorides with 5 …

An efficient synthesis of a series of pyrazolo [4, 3-c] quinoline is reported. A multicomponent
reaction was designed using isatins, 1-aryl-2-(1, 1, 1-triphenyl-λ 5-phosphanylidene)-1 …

A ZnCl2‐promoted one‐pot synthesis of multisubstituted thiazolo [4, 5‐b] pyridines and
thieno [2, 3‐b: 4, 5‐b′] dipyridines from mercaptonitrile salts, α‐bromo ketones and ketones …

Thirteen 5-hetarylaminopyrazoles were synthesized in 62–93% yield through the arylation of
1-isopropyl-and 1-phenyl-5-aminopyrazoles with electrophilic hetarylhalides under …

A simple and efficient synthesis of spiro [pyrazolo [3, 4-b] pyridine-4, 3′-indoline] and spiro
[benzo [h] pyrazolo [3, 4-b] quinoline-4, 3′-indoline] derivatives has been accomplished by …

A rapid synthesis of mono-and bis-tetrahydropyrazolo [4′, 3′: 5, 6] thiopyrano [4, 3-b]
quinolines has been achieved by the reaction of aldimines derived from aromatic amines …

A one-pot route for the regioselective synthesis of 3-formylpyrazolo [1, 5-a] pyrimidines 4a–k
in good yields through a microwave-assisted process is provided. The synthesis proceeds …

A series of pyrazolopyrimidine and pyrazoloquinozoline derivatives has been synthesized in
one step by multicomponent reactions using, 5‐aminopyrazole, p …

Aminopyrazoles required for the synthesis of pyrazolo 1, 5-a pyrimidines were obtained by
the reaction of enaminonitriles with hydrazine hydrate. The resulting aminopyrazoles are …

The development of new synthetic routes towards pyrazolo [1, 5-a] pyrimidines for their
biological and medicinal exploration is an attractive area for researchers. This review …