Palladium-coated thiourea core-shell nanocomposite as a new, efficient, and magnetic responsive nanocatalyst for the Suzuki-Miyaura coupling reactions

Abstract

In this research, according to the important aspects of palladium components in conducting Suzuki-Miyaura coupling reactions and formation of biphenyl compounds, magnetic responsive palladium/thiourea nanocomposite as a new magnetic nanocatalyst was designed, synthesized, and characterized using FT-IR, EDX, FE-SEM, and VSM analyses. The catalytic performance of this new nanocomposite with magnetic susceptibility was evaluated in the Suzuki-Miyaura coupling reaction. Based on the functionalized surface of Fe3O4 magnetic cores with SiO2, CPTMS, thiourea shells, and especially Palladium ions shell, the formation of biphenyl derivatives in a green and eco-friendly reaction condition was highlighted.

A sustainable gateway to access 1,8-dioxo-octahydroxanthene scaffoldsviaa surface-engineered halloysite-based magnetically responsive catalyst

“…On moving to the spectrum of DCH@CPTMS@MHNTs, the peak at 1652 cm −1 corresponded to –NH bending vibrations, whereas the characteristic peak of C–N stretching vibration mode could not be observed due to its possible overlapping with the symmetric vibration mode of Si–O–Si bond. 67,68 Furthermore, it was interesting to note that with a slight shift in –NH absorption bands, all the characteristic peaks of DCH@CPTMS@MHNTs appeared even after metalation, signifying that the basic backbone structure remained completely intact.…”

Exploring the latest trends in chemistry, structure, coordination, and diverse applications of 1-acyl-3-substituted thioureas: a comprehensive review

“…Molecular structure and conformations of 1-(acyl/aroyl)-3-(mono-substituted) thioureas were studied extensively, and it is found that the enormous potential of conformational possibilities for acyl thioureas are one of the reasons behind their diverse biological activities. [56][57][58] Extensive literature exploring the molecular structure and conformational properties of acyl thioureas, along with their potential applications, is readily available. 59 Novel acyl thiourea (43) having two diethyl groups and one heterocyclic furanyl group was synthesized (Scheme 12) by Saeed et al From single crystal XRD analysis it was found that the centrosymmetric dimer of respective thiourea was due to the strong intermolecular hydrogen bonding between N-H and O]C and van der Waal's forces, this observation was also conrmed by Hirshfeld surface analysis.…”

“…Molecular structure and conformations of 1-(acyl/aroyl)-3-(mono-substituted) thioureas were studied extensively, and it is found that the enormous potential of conformational possibilities for acyl thioureas are one of the reasons behind their diverse biological activities. 56–58 Extensive literature exploring the molecular structure and conformational properties of acyl thioureas, along with their potential applications, is readily available. 59…”

Recent trends in chemistry, structure, and various applications of 1-acyl-3-substituted thioureas: a detailed review

“…There has been much attention given to the conformational and structural properties of 1-(acyl/aroyl)-3-(mono-substituted) thioureas, the conformational exibility depends upon the substitutions at nitrogen atom on thioureas, these attributes caused these compounds display remarkable activities [30][31][32] and as uorescent chemosensors for recognition of many ions. 33 Many articles have been published on the conformational and structural aspects of thioureas.…”