High surface and magnetically recoverable mPANI/pFe₃O₄nanocomposites for C–S bond formation in water

Silica-nanosphere-based organic–inorganic hybrid nanomaterials: synthesis, functionalization and applications in catalysis

“…66,67 Several transition-metal catalysts have been developed as excellent reagents for simple and complex stereo-controlled formations of C-C, C-S and C-N bonds. [68][69][70] However, the major disadvantage of using transition metals is the requirement of an additional step to remove the leached metals and ligands that are released from the decomposed catalysts. To overcome this problem, silica NPs have garnered considerable interest from the scientific community.…”

Recent Applications of Magnetically Recoverable Nanocatalysts in CC and CX Coupling Reactions

“…Very recently, the Fe 3 O 4 @mesoporous polyaniline core–shell nanocomposite prepared by Likhar and co‐workers (i.e., catalyst MNP‐ 89 ) has been used as a magnetically recoverable catalyst in the S‐arylation of phenols with aryl chlorides (Scheme ) 188. After optimizing the reaction parameters in the cross‐coupling of thiophenol with 4‐methylchlorobenzene, the best result is obtained by using pFe 3 O 4 @mPANI (5 mol %) with KOH as the base in refluxing water.…”

ChemInform Abstract: Recent Applications of Magnetically Recoverable Nanocatalysts in C—C and C—X Coupling Reactions

“…Very recently,t he Fe 3 O 4 @mesoporous polyaniline core-shell nanocomposite prepared by Likhar and co-workers (i.e.,c atalyst MNP-89)h as been used as am agnetically recoverable catalyst in the S-arylation of phenols with aryl chlorides (Scheme 146). [188] After optimizing the reactionp arameters in the cross-coupling of thiophenol with 4-methylchlorobenzene, the best result is obtained by using pFe 3 O 4 @mPANI (5 mol %) with KOH as the base in refluxing water.V arious unsymmetrical diaryl sulfides are obtained in this wayi nm oderate to high yields through the reaction of aw ide range of electron-rich and electron-poora ryl chlorides with thiophenol. Moreover, the system has been successfully used in the coupling of aliphatic and heteroaromatic chlorides with thiophenol in modest yields.…”