Pyrazoles are known as versatile scaffolds in organic synthesis and medicinal chemistry,
often used as starting materials for the preparation of more complex heterocyclic systems …

We consider the conformational flexibility of molecules and its implications for micro-and
macro-p K a. The corresponding formulas are derived and discussed against the …

Redox-active ligands bring electron-and proton-transfer reactions to main-group
coordination chemistry. In this Forum Article, we demonstrate how ligand p K a values can …

A series of inexpensive and water-soluble fluorescent dihydro-[1, 2, 4] triazolo [4, 3-a] pyridin-
2-ium-carboxylates (Safirinium dyes) have been synthesized and characterized by UV–Vis …

A series of disubstituted 1 H-pyrazoles with methyl (1), amino (2), and nitro (3) groups, as
well as ester (a) or amide (b) groups in positions 3 and 5 was synthesized, and annular …

The prototropic tautomerism in 3 (5)-aminopyrazoles was investigated by matrix isolation
infrared (IR) spectroscopy, supported by DFT (B3LYP)/6-311++ G (d, p) calculations. In …

Propanephosphonic acid anhydride (T3P) is a process-friendly commercial reagent that is
useful for direct carboxamide formation from the carboxylic acid and amine components. For …

The aim of the study was to synthesize and characterize a new ruthenium (II)-pyrazole/
dithiocarbazate complex derived from cis-[RuCl 2 (dmso) 4](Ru-dmso) and coordinated with …

The electrocatalyzed N–N coupling and ring cleavage reaction of 3-methyl-, 3, 5-dimethyl-, 3-
methyl-5-phenyl-and 3, 5-diphenyl-1H-pyrazole was investigated and led to the electro …

Pyrazoles tautomerism, annular of pyrazoles and indazoles and functional of pyrazolinones,
was called pyrazoloness some six decades ago. To display a panorama of tautomerism …