A highly efficient, ligand-free and recyclable SBA-15 supported Cu₂O catalyzed cyanation of aryl iodides with potassium hexacyanoferrate(ii)

Abstract

SBA-15 supported Cu2O nanoparticles (Cu2O/SBA-15) have been fabricated and characterized. The Cu2O/SBA-15 nanoparticles can effectively catalyze cyanation of aryl iodides using non-toxic K4[Fe(CN)6] as a cyanide source.

Copper Mediated Chemo‐ and Stereoselective Cyanation Reactions

“…The catalytic system, in the absence of additional ligands or base additives, showed excellent catalytic activity with high yields for the respective nitriles tolerating a broad range of functional groups (See Figure 15). [26] Formation of aryl nitriles effectively catalyzed by using copper(I)iodide/1-alkylimidazole based catalytic system using K 4 [Fe(CN) 6 ] as the "CN'' source. The resulting nitriles were obtained in acceptable yields avoiding usage of expensive reagents (See Figure 16).…”

“…The catalytic system, in the absence of additional ligands or base additives, showed excellent catalytic activity with high yields for the respective nitriles tolerating a broad range of functional groups (See Figure 15). [26] …”

Copper nanoparticles synthesis in hybrid mesoporous thin films: Controlling oxidation state and catalytic performance through pore chemistry

“…[1,13,14] Several syntheses of powdered mesoporous materials modified with Cu(CuOx) NPs have been reported in the literature. [15][16][17][18][19][20][21][22][23][24][25][26][27][28] In most of those cases, Cu (II) is first adsorbed to the mesoporous surface through surface functionalization, and then a thermal treatment follows that results in the NPs formation. The Cu(CuOx) mesoporous composite powders have been mainly applied on catalysis of organic reactions.…”

Polymer biquinolyl-containing complexes of Pd(ii) as efficient catalysts for cyanation of aryl and vinyl halides with K4Fe(CN)6

“…[46][47][48] Copper containing catalysts are cheaper but usually less efficient, require harsh reaction conditions and usually have lower functional group tolerance. [49][50][51] Recently, combined Pd-Cu catalytic systems have been suggested for cyanation of aryl halides and have turned out to be rather efficient for iodides and activated bromides. 43,44 As concerns cyanation of vinyl halides with K 4 Fe(CN) 6 , only few publications are available and the scope of halides is mainly limited to various styryl bromides.…”