Electron-rich salen-type Schiff base complexes of Cu(II) as catalysts for oxidation of cyclooctene and styrene with tert-butylhydroperoxide: A comparison with electron-deficient ones

Cobalt(II) and Manganese(II) Complexes of Novel Schiff Bases, Synthesis, Charcterization, and Thermal, Antimicrobial, Electronic, and Catalytic Features

“…Higher selectivities (14.2% and 18.7%) were obtained for cyclohexeneoxide by using cobalt(II) complexes as catalyst. Comparing our results to those reported previously, we can say that our compounds and their catalytic activity results, although not whole, have similarities with salen and salophane type Schiff bases reported previously [8,12,18,51]. The oxidation schemes for both styrene and cyclohexene can be seen in Figure 7.…”

“…In particular, the catalysis of alkene oxidation by soluble transition metal complexes is of great interest in both biomimetic chemistry and synthetic chemistry [6]. So far various Schiff base complexes have been employed to catalytic oxidation of olefins to epoxides and aldehydes, and it has been proved that many Schiff base complexes gave improved results as catalysts for these kinds of oxidation reactions [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. In our research, the synthesized Schiff base complexes have been searched for their potential use as catalysts in oxidation reactions for both cyclohexene and styrene.…”

Synthesis, Structural Characterization and Catalytic Oxidation Property of Schiff Base Copper(ii) Complexes

“…The Cu-O/N bonds are within normal values and comparable to those observed in similar copper complexes. 16,17 The cis and trans angles vary between 88.67(8) and 96.17(10)º, and 154.13 (10) and 159.26(10)º for complex (1), and between 84.83(11) and 95.34(13)º, and 172.32(11) and 177.75(14)º for complex (2), respectively. In complex (1), the dihedral angle between the two naphthyl rings is 47.4(5)º.…”

Two New Schiff Base Ni Ii and Cu Ii Complexes: Synthesis and Structures

“…The bond distances subtended at the Cu atom are comparable to those observed in the similar copper(II) complexes with Schiff bases. 17,18 The morpholine rings adopt well-shaped chair conformation.…”