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

We have described a convenient regioselective one-pot approach to pyrazolo [1, 5-a]-and
imidazo [1, 2-a] pyrimidine derivatives from α, β-unsaturated imines generated in situ and …

An effective one-pot strategy was developed for the synthesis of 4-arylpyrazolo [3, 4-b]
pyridin-6-ones from pyrazolo [3, 4-b] pyridin-6-ones, obtained by reacting 5-aminopyrazoles …

In this study, we aimed to establish an efficient method for synthesizing two new series of
arene‐linked pyrazolo [1, 5‐a] pyrimidines. This was achieved by reacting 1 H‐pyrazole‐3, 5 …

A mild and efficient method for the synthesis of bispyrazolo [3, 4-b: 4′, 3′-e] pyridines from
5-aminopyrazoles and aromatic aldehydes using an inexpensive FeCl 3 catalyst is reported …

Acetylenic enamines generated in situ from readily available enynones and primary amines
undergo thermal cyclization in diphenyl ether providing easy access to 4-aryl-2 …

A domino reaction for the rapid and diverse synthesis of spiro [1 H-pyrazolo [3, 4-b] benzo [h]
dihydroquinolin-4, 3-indolin-2-ones] is reported. The synthesis represents a …

An efficient synthesis of 5a-hydroxy-4, 5, 5a, 6, 7, 8-hexahydropyrazolo [4, 3-c] quinolizin-9-
ones based on the three-component condensation of 5-aminopyrazoles, aromatic …

ABSTRACT A novel and efficient method for the synthesis of 6-substituted-7, 7a-dihydro-1,
7a-dimethyl-7-imino-2-phenyl-1 H-pyrazolo [4, 3-b] pyridin-3 (2 H)-ones via the reaction of 4 …

A facile, mild and efficient procedure for the synthesis of fully substituted pyrazolo [3, 4-b]
pyridin-5-amines is reported. A mixture of an α-azidochalcone, a 5-aminopyrazole and t …