Covalently immobilized indium(III) composite (In/SiO2) as highly efficient reusable catalyst for A3-coupling of aldehydes, alkynes and amines under solvent-free conditions

Cycloaurated Phosphinothioic Amide Complex as a Precursor of Gold(I) Nanoparticles: Efficient Catalysts for A3 Synthesis of Propargylamines under Solvent-Free Conditions

“…The one-pot A 3 coupling synthesis of these compounds may be improved by using solvent-free conditions . Recently, various solvent-free synthesis of propargylamines based on alkyne C–H activation by metal catalysts such as lithium, rhenium, silver, copper, , nickel, zinc, manganese, iron, indium, and some polymetallic systems have been reported. For gold, the preparation of propargylamines via solvent-free A 3 processes is limited to the use of AuBr 3 and silica-supported Au 0 nanoparticles .…”

Solvent-free synthesis of propargylamines: an overview

“…In 2015, Schneider and co-workers developed an astonishing methodology towards the synthesis of propargylamines using silica-xerogel-supported indium(III) composite (In/SiO 2 ) as catalyst. 76 They carried out one-pot A 3 coupling under conventional and microwave-assisted method ( Schemes 35 and 36 ). This reaction was completed within 10 min.…”

Synthesis and structural features of indium(iii) furan-2-thiocarboxylates showing efficient catalytic activity toward multicomponent reactions via Knoevenagel condensation

“…[9][10][11] In recent years, several scientific articles describing the significance of indium(III) salts along with indium metal-organic frameworks (MOFs) and organoindium compounds in homoand heterogeneous catalysis [12][13][14] have been published. Indium (III) based catalysts have been explored on several multicomponent reactions such as classical Ugi reaction, 15,16 epoxide-based Passerini reaction, 17 multiple isocyanide insertion reactions, 18 A 3 -coupling reaction, 19 Knoevenagel-initiated MCR, [20][21][22][23][24][25][26] and Hantzsch-type dihydropyridine and pyrrole synthesis, 27 and multi-catalytic systems and nanocatalysts for the synthesis of poly-substituted heterocycles, 28,29 quinoline derivatives and amino carbazole derivatives. [30][31][32][33][34][35][36][37] However, the In(III) complexes with S/O donor ligandcatalyzed MCRs are scanty.…”