In the past decade, interest in pyrazole chemistry has significatively increased mainly due to
the discovery of the interesting properties exhibited by a great number of pyrazole …

Pyrazoles are of considerable interest due to the broad variety of their biological activities.
This overview summarizes structures of pharmacologically interesting pyrazoles, natural …

Click and bio-orthogonal reactions are dominated by cycloaddition reactions in general and
1, 3-dipolar cycloadditions in particular. Among the dipoles routinely used for click chemistry …

A wide variety of bench-stable potassium heteroaryltrifluoroborates were prepared, and
general reaction conditions were developed for their cross-coupling to aryl and heteroaryl …

Since their early discovery by Earl and Mackney in 1935, sydnones have received steady
interest over the last century. 1 The pioneering reviews by Ollis and Stewart discuss, in …

Electrophilic cyclizations of α, β-alkynic hydrazones by molecular iodine were investigated
for the synthesis of 4-iodopyrazoles. α, β-Alkynic hydrazones were readily prepared by the …

Synthesis of 2H-Indazoles by the [3 + 2] Cycloaddition of Arynes and Sydnones | Organic Letters
ACS ACS Publications C&EN CAS Find my institution Log In Organic Letters ACS Publications …

An immunoassay‐based method was used to screen numerous combinations of dipoles and
dipolarophiles for their ability to undergo chemoselective and biocompatible [3+ 2] …

A mild and rapid approach has been developed for the construction of fully substituted
pyrazoles using TBAI as a catalyst and TBHP as an oxidant, in which tosylhydrazide …

Synthesis of pyrazoles via electrophilic cyclization of α, β-alkynic hydrazones by copper (I)
iodide is described. When treated with copper (I) iodide in the presence of triethylamine in …