Indium-mediated regioselective Markovnikov allylation of unactivated terminal alkynes

Allylation of unactivated terminal alkynes by a simple treatment with allyl bromide and indium metal in THF at room temperature produces 1,4-dienes via regioselective Marknovnikov addition

A Lewis Acid Promoted Reduction of Aromatic Nitro to Amines Compounds

This work was funded by Russian Science Foundation (Ref. No. 18-73-00301)

Selective monoacylation of ferrocene. An eco-friendly procedure on the solid phase of alumina

A simple, efficient and environment-friendly procedure has been developed for acylation of ferrocene with direct use of carboxylic acid in the presence of trifluoroacetic anhydride on the solid phase of alumina. A wide range of structurally varied carboxylic acids have been found to provide selectively the monoacylated products in high yields

An Efficient Method for the Synthesis of Dihydropyrimidines Using Bronsted Acidic Ionic Liquid: a Solvent and Heating Free Reaction

This work was funded by Russian Science Foundation (Ref. No. 18-73-00301)

Zinc mediated allylation of aldehydes and ketones using allyl bromides and commercial zinc dust. The issue of regio- and stereoselectivity

731-73

Synthesis of Quinoxaline Derivatives Catalyzed by Bronsted Acidic Ionic Liquid Under Solvent-Free Conditions

This work was funded by Russian Science Foundation (Ref. No. 18-73-00301)

In situ synthesis of CuO nanoparticles over functionalized mesoporous silica and their application in catalytic syntheses of symmetrical diselenides

A versatile and novel catalyst, CuO nanoparticles immobilized over functionalized mesoporous silica (nCuO-FMS), has been synthesized over an organically modified mesoporous silica framework following a facile synthetic route. The surface of the silica support (SBA-15) is first grafted with the 3-aminopropyl silane group and then further functionalized with tris(4-formylphenyl)amine. The reaction is performed in such a way that a few –CHO groups remain free for further functionalization. Finally, the CuO nanoparticles immobilized on mesoporous silica are obtained by a one pot reaction between the functionalized silica, 2-aminophenol and CuCl2. The product obtained has been used as a catalyst for the syntheses of symmetrical diselenides in the presence of KOH as the base and dimethyl sulphoxide (DMSO) as the solvent. The materials have been characterized thoroughly by X-ray powder diffraction, nitrogen adsorption–desorption studies, transmission electron microscopy, thermal analysis and different spectroscopic techniques. The Cu content of the sample has been determined by atomic absorption spectrophotometry (AAS). The products of the catalytic studies have been identified and estimated by NMR spectroscopy. Almost 78% isolated yield could be achieved at 363 K within 3 hours of the reaction and the catalyst, nCuO-FMS, can be recycled at least up to five catalytic cycles