CuI nanoparticles as recyclable heterogeneous catalysts for C–N bond formation reactions

Abstract

Herein, copper iodide nanoparticles (NPs) are reported for the reductive amination of carbonyl compounds for the first time.

Surprisingly high sensitivity of copper nanoparticles toward coordinating ligands: consequences for the hydride reduction of benzaldehyde

“…39,40 In fact, among the variety molecular metallic complexes known to promote hydrosilylative reduction of carbonyl derivatives, 36,41,42 Cu(I) and Cu(II) complexes proved to be potent candidates because of the formation of copper hydride species, stabilized by electron-rich phosphines. [43][44][45][46][47] However, the in situ formation of nanoparticles or clusters, such as Stryker's reagent, is rarely discussed 38 whereas they can be active in various reactions. 1,48,49 Thus, we investigated the nature of the active species and the possibility of leaching in the current reaction.…”

Cross-Linked Chitosan Bead Supported Copper Complex in Water as a Green and Efficient Catalytic Protocol for Ullmann Reaction

“…In Figure 6b , the absence of shake-up characteristic peaks confirmed the presence of only ＋1 oxidized form of Cu. [52,53] With the weaker of the peak of the Cu 2p and the appearance of the noise peaks, the copper was slightly lost after the catalyst was reused twice. In Figure 6c, the binding energies of 399.5 and 398.7 eV were attributed to NH and N＝.…”

One-Pot Synthesis of Copper Iodide-Polypyrrole Nanocomposites

“…Copper iodide (CuI) has a wide application in nonlinear optics [1,2], solar cells development [3], photocatalysis [4], photoluminescention [5], electrophysics [6,7] and conventional analytical chemistry, i.e., mercury detection [8]. Apart from those, CuI is used as a perspective catalyst in a large number of organic synthesis, viz., Heck-types reactions [9,10], Stills-types [11], Ullmann-type routes [12][13][14][15][16][17][18][19] Suzuki-Miyaura and Sonogashira reactions of cross-coupling [20][21][22] and many others [19,[22][23][24][25][26][27]. In addition, CuI was reported as an effective electrocatalyst in hydrazine-related synthesis [28] and formic acid oxidation [29].…”