Immobilized Cu(ii) and Co(ii) salen complexes on graphene oxide and their catalytic activity for aerobic epoxidation of styrene

Coordination chemistry on carbon surfaces

“…Similarly, Kan et al covalently attached a salen-type ligand onto GO by nucleophilic substitution between the chloro-modified salen and the aminofunctionalized support (Table 17, entry 8) [379][380][381]. Various supported complexes named M-salen-GO were then synthesized via addition of the corresponding metal salt: Cu(II) [379], Co(II) [379], VO(IV) [380], Fe(III) [380] or MoO 2 (VI) [381].…”

Dual catalysis with magnetic chitosan: direct synthesis of cyclic carbonates from olefins with carbon dioxide using isobutyraldehyde as the sacrificial reductant

“…Based on these 60 studies and in analogy to the existing report we proposed a plausible mechanistic pathway for the reaction. 17 The reaction might involve the formation of isopropylacyl radical from isobutyraldehyde via an electron transfer to the cobalt (II) complex which subsequently added with oxygen to give oxo- The effect of other parameters, such as CO 2 /O 2 pressure, reaction temperature and reaction time was also investigated ( Fig. 4).…”

Immobilized magnetic nano catalyst for oxidation of alcohol

“…The geometric structure of the complexes can favour by altering the catalyst activity and selectivity. In recent years, many researchers have devoted on immobilization of the ligands on inert barrier such as silica [18], CNT [19], graphene oxide [20] etc. However, the reported complexes have the drawbacks of excessive loading of complex on magnetic support.…”