Graphene oxide–iridium nanocatalyst for the transformation of benzylic alcohols into carbonyl compounds

Abstract

Graphene oxide–iridium nanostructure act as a robust catalyst exhibiting high activity and reliability for the selective transformation of benzylic alcohols into aromatic aldehydes or ketones.

A Novel Organometallic Coordination Polymer as a Heterogeneous Catalyst for C−C Bond Formation

“…For comparison, the spectra of Ni(OAc) 2 ⋅ 4H 2 O (Ni 2+ ) was also acquired. The white line intensity of complex 1 is lower than Ni(OAc) 2 ⋅ 4H 2 O, which indicates that the oxidation state of the Ni ion of complex 1 is lower than that of Ni 2+ , Figure 4 [20–21] …”

Iridium/graphene nanostructured catalyst for the N-alkylation of amines to synthesize nitrogen-containing derivatives and heterocyclic compounds in a green process

“…The catalyst, iridium–graphene nanostructured catalyst (GIrNC), was prepared by the reaction of graphene oxide (GO) with iridium( iii ) chloride in a mixed solvent (ethoxylethanol : water = 1 : 1, v/v) at 110 °C under argon ( Scheme 1 ), 9 where the graphene oxide was synthesized by a modified Hummers' method. 10 The infrared spectrum of graphene oxide ( Fig.…”

La(OH)3 nanoparticles immobilized on Fe3O4@chitosan composites as novel magnetic nanocatalysts for sonochemical oxidation of benzyl alcohol to benzaldehyde

“…These processes require toxic, expensive, or hazardous chemicals (such as pyridinium chlorochromate (PCC), permanganate (MnO 4 À ), dichromate (Cr 2 O 7 2À ), chromium trioxide (CrO 3 )), as oxidants that lead to safety and ecological problems. 6,7 Thus, the development of a new method for the construction of heterogeneous (nano) catalysts is a matter of increasing attention in the catalysis eld.…”

“…These processes require toxic, expensive, or hazardous chemicals (such as pyridinium chlorochromate (PCC), permanganate (MnO 4 − ), dichromate (Cr 2 O 7 2− ), chromium trioxide (CrO 3 )), as oxidants that lead to safety and ecological problems. 6,7 Thus, the development of a new method for the construction of heterogeneous (nano)catalysts is a matter of increasing attention in the catalysis field. In recent years, biopolymer derived nanocatalysts have been considered as heterogeneous catalysts with excellent catalytic activity for chemical transformations, particularly, in oxidation reactions.…”

“…3 (Table1, entry[5][6]. According to the test results, in the absence of the catalyst, the yield decreased (Table1, entry 6).…”