Recent advances in synthesis and properties of pyrazoles

MC Ríos, J Portilla - Chemistry, 2022 - mdpi.com
Pyrazole-containing compounds represent one of the most influential families of N-
heterocycles due to their proven applicability and versatility as synthetic intermediates in …

A review on molecular iodine catalyzed/mediated multicomponent reactions

Monika, Chander, S Ram… - Asian Journal of Organic …, 2023 - Wiley Online Library
In multicomponent reactions, three or more reactants combine in one pot to form a product
without the isolation of intermediate and most of the reactants contribute to newly formed …

Copper-promoted aerobic oxidative [3+ 2] cycloaddition reactions of N, N-disubstituted hydrazines with alkynoates: access to substituted pyrazoles

X Zou, L Zheng, X Zhuo, Y Zhong, Y Wu… - The Journal of …, 2023 - ACS Publications
A copper-promoted aerobic oxidative [3+ 2] cycloaddition reaction for the synthesis of
various substituted pyrazoles from N, N-disubstituted hydrazines with alkynoates in the …

Recent advances in multicomponent synthesis of pyrazoles

J Zhou, QQ Zhou, JP Wan - Organic & Biomolecular Chemistry, 2024 - pubs.rsc.org
Pyrazole moiety is considered as privileged N-heterocycle in pharmaceuticals and many
other functional molecules. The utilization of multicomponent reaction consists one of the …

Dimethyl Sulfoxide-Assisted, Iodine- and Ascorbic Acid-Catalyzed One-Pot Synthetic Approach for Constructing Highly Substituted Pyrazolo[1,5-a]quinoline Thioether …

R Saritha, SB Annes, K Perumal… - The Journal of …, 2022 - ACS Publications
A dimethyl sulfoxide-assisted and iodine/ascorbic acid-catalyzed simple approach to
pyrazolo [1, 5-a] quinoline thioether derivatives 22 is described. The compounds were …

Facile construction of C, N-disulfonated 5-amino pyrazoles through an iodine-catalyzed cascade reaction

M Geng, J Kuang, W Fang, M Miao, Y Ma - Organic & Biomolecular …, 2022 - pubs.rsc.org
A green and facile synthesis of previously unreported C, N-disulfonated 5-amino pyrazoles
was established through an iodine-catalyzed cascade reaction of easily accessible sulfonyl …

A copper (ii) bromide/NMO system for α-amination of esters under continuous-flow conditions with reduced catalyst loading

Y Chauhan, KN Kumar, V Ravichandiran… - New Journal of …, 2024 - pubs.rsc.org
A new copper (II) bromide/N-methylmorpholine N-oxide (NMO)-promoted method for α-
amination of esters under continuous-flow conditions, with reduced catalyst loading is …

Transition‐Metal‐Free Synthesis of N‐Heterocyclic Compounds via Multi‐Component Reactions

DJ Boruah, L Borkotoky, UD Newar… - Asian Journal of …, 2023 - Wiley Online Library
Multicomponent reactions (MCRs) have emerged as powerful tools in synthetic chemistry for
the efficient synthesis of diverse molecular scaffolds, particularly nitrogen‐containing …

Electrocatalytic C–H/S–H Coupling of Amino Pyrazoles and Thiophenols: Synthesis of Amino Pyrazole Thioether Derivatives

W Zhang, Q Zou, Q Wang, D Jin, S Jiang… - The Journal of Organic …, 2024 - ACS Publications
A mild method for the C–H/S–H coupling of pyrazol-5-amines and thiophenols was
developed via electrochemistry, giving diverse amino pyrazole thioether derivatives in 37 …

Epigrammatic review on heterocyclic moiety pyrazole: Applications and synthesis routes

S Jain - Mini-Reviews in Organic Chemistry, 2024 - ingentaconnect.com
Heterocyclic compounds are amongst the most promising and versatile classes of
biologically important molecules. One of the heterocycle molecules is pyrazole with a five …