Halloysite functionalized with Cu (II) Schiff base complex containing polymer as an efficient catalyst for chemical transformation

Effect of support hydrophobicity of halloysite‐based catalysts on the polyalphaolefin hydrofinishing performance

“…Oligomerization of 1-decene and synthesis of PAO was carried out according to the literature. [27] Typically, the reactor used for the polymerization was first charged with AlCl 3 (5 g) and purged with an inert gas. After heating at 80 C for 1 h, 1-decene (500 g) and deionized water (0.3 ml) were added, and the reaction mixture was stirred for 50 min at 100 C. At the end of the reaction, the obtained oil was rinsed several times with 5 wt.% NaOH.…”

“…[19][20][21] Furthermore, both surfaces of Hal can be modified through covalent or noncovalent approaches. [22][23][24] This leads a broad scope of uses for halloysites, from the bio field,[ 25,26 ] resulted in rapid growth of Hal-based catalysts for various chemical reactions, [27] including hydrogenation [28,29] and oxidation reactions, [30] as well as synthesis of organic compounds. [31,32] Polyalphaolefin (PAO)-type lubricants synthesized from long α-olefin monomers, generally from C6 to C12, is of the group IV of the American Petroleum Institute (API) category.…”

“…[ 19–21 ] Furthermore, both surfaces of Hal can be modified through covalent or non‐covalent approaches. [ 22–24 ] This leads a broad scope of uses for halloysites, from the bio field,[ 25,26 ] resulted in rapid growth of Hal‐based catalysts for various chemical reactions, [ 27 ] including hydrogenation [ 28,29 ] and oxidation reactions, [ 30 ] as well as synthesis of organic compounds. [ 31,32 ]…”

New mononuclear Fe(III), Co(II), Ni(II), Cu(II), and Zn(II) complexes incorporating 4‐{[(2 hydroxyphenyl)imino]methyl}phenyl‐4‐methylbenzenesulfonate (HL): Synthesis, characterization, theoretical, anti‐inflammatory, and molecular docking investigation

“…Furthermore, the azomethine connection has been considered to be responsible for their biological actions. The chemistry of metal complexes of Schiff bases has had a significant impact on the development of coordination and medicinal chemistry 24,25 . On the other hand, 4‐thiazolidinonesare considered an important class of heterocyclic compounds with a wide range of pharmaceutical and biological applications such as antiviral, 26 anticancer, 27,28 antimycobacterial, 29 antimicrobial, 30,31 and analgesic and anti‐inflammatory 32,33 activities.…”

“…The chemistry of metal complexes of Schiff bases has had a significant impact on the development of coordination and medicinal chemistry. 24,25 On the other hand, 4-thiazolidinonesare considered an important class of heterocyclic compounds with a wide range of pharmaceutical and biological applications such as antiviral, 26 anticancer, 27,28 antimycobacterial, 29 antimicrobial, 30,31 and analgesic and anti-inflammatory 32,33 activities. Thus, we believe that 4-thiazolidinonesare-based Schiff base may led to great enhancement of its activity.…”