Nanofibrils of a Cu^II-Thiophenyltriazine-Based Porous Polymer: A Diverse Heterogeneous Nanocatalyst

Abstract

Herein, we report knitting of a thiophenyltriazine-based porous organic polymer (TTPOP) with high surface area and high abundance of nitrogen and sulfur sites, synthesized through a simple one-step Friedel–Crafts reaction of 2,4,6-tri­(thiophen-2-yl)-1,3,5-triazine and formaldehyde dimethyl acetal in the presence of anhydrous FeCl3, and thereafter grafting of Cu­(OAc)2·H2O in the porous polymer framework to achieve the potential catalyst (CuII-TTPOP). TTPOP and CuII-TTPOP were characterized thoroughly utilizing solid-state 13C-CP MAS NMR, Fourier transform infrared, wide-angle powder X-ray diffraction, thermogravimetric analysis, and X-ray photoelectron spectroscopy and surface imaging by transmission electron microscopy and field emission scanning electron microscopy. The porosity of the nanomaterials was observed in the surface imaging and verified through conducting N2 gas adsorption techniques. Keeping in mind the tremendous importance of C-C and C-N coupling and cyclization processes, the newly synthesized CuII-TTPOP was employed successfully for a wide range of organic catalytic transformations under mild conditions to afford directly valuable diindolylmethanes and spiro-analogues, phthalimidines, propargyl amines, and their sugar-based chiral compounds with high yields using readily available substrates. The highly stable new heterogeneous catalyst showed outstanding sustainability, robustness, simple separation, and recyclability.

Nanotherapeutics for regeneration of degenerated tissue infected by bacteria through the multiple delivery of bioactive ions and growth factor with antibacterial/angiogenic and osteogenic/odontogenic capacity

“…The deconvoluted XPS spectrum of Cu 2p (inset of Fig. 1 d) revealed two signals at 933.2 eV and 935.65 eV, assigned to Cu 2p 3/2 core levels of Cu 2+ ions [ 41 , 55 ]. The XPS analysis revealed the atomic bonding status and structural atomic environments of the Si, Ca, O, Cu, C and N and confirmed the electronic state of Cu 2+ in the glass matrix of Cu-BGn.…”

Metal Catalysis with Knitting Aryl Polymers: Design, Catalytic Applications, and Future Trends

“…Thus, thiophenyltriazine was knitted, following method-1, and the formed network was treated with Cu(OAc) 2 to yield the catalyst Cu(II)-TTPOP (Figure 12). 84 This catalyst with a moderate specific surface area (395 m 2 •g −1 ) is one of the most versatile metal-coordinated KAPs reported because it was very effective in different organic reactions that yield interesting compounds such as diindolylmethanes and spiro-analogues, propargyl amines, and phthalimidines, among others. Besides, the catalyst was perfectly recyclable and did not experience metal leaching during reactions.…”

Thienyltriazine based conjugated porous organic polymers: tuning of the porosity and band gap, and CO2 capture

“…This study is relevant for the applications of CPPs in organic electronics, optoelectronics, photochemical water splitting, and the high sulfur content of these materials make them a potential candidate for application in supercapacitors and lithium-ion batteries. [55][56][57][58][59][60] .…”