Acidic polymer containing sulfunic acid and carboxylic acid groups heterogenized with natural clay: A novel metal free and heterogeneous catalyst for acid-catalyzed reactions

Biochar-Based Graphitic Carbon Nitride Adorned with Ionic Liquid Containing Acidic Polymer: A Versatile, Non-Metallic Catalyst for Acid Catalyzed Reaction

“…The latter, was then vinyl functionalized with 3-(trimethoxysilane) propyl methacrylate (3-TMSPMA) to furnish BC@GCN-V and subsequently tolerated polymerization reaction with 1-vinylimidazole, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and acrylic acid (AA), Figure 1 . The polymeric moiety (P-IL) that has been grown on BC@GCN contained both acidic (–COOH and –SO 3 H) [ 66 ] and IL moieties on its backbone. Hence, it was assumed that it could promote various classic, acid-catalyzed chemical transformations efficiently under mild reaction condition.…”

“…In this research, we targeted preparation of a metal-free catalyst that could catalyze conventional chemical transformations in aqueous media under a mild reaction condition. In this regard, BC@GCN was prepared and then, a polymeric moiety that contained both IL and acid functionalities (–SO 3 H and –COOH) [ 66 , 68 ] was incorporated to the structure of the catalyst. It was assumed that both IL and acidic functionalities could effectively promote the acid-catalyzed reactions.…”

“…To obtain the Knoevenagel condensation products, the solvent was evaporated under vacuum and products were purified by column chromatography (ethyl acetate/hexane 1:5) (Agilent, Santa Clara, CA, USA). All of the products were synthetic [ 66 ] and their characterization was performed by comparing their melting points and spectral data ( 1 H NMR and 13 C NMR) with authentic samples. Moreover, the yields of the reactions were estimated by using GC (Agilent, USA).…”

“…We are interested in developing heterogeneous catalysts with the use of natural raw materials [ 62 , 63 , 64 , 65 ]. In this line, we have recently reported non-metallic catalysts that were designed by introduction of ILs or acidic moieties on a natural supporting material [ 8 , 66 ]. In the continuation of our studies, we wish to report a versatile catalyst, BC@GCN-P-IL, that benefits from both acidic and IL moieties.…”

A Novel Composite of Ionic Liquid-containing Polymer and Metal-organic Framework as an Efficient Catalyst for Ultrasonic-assisted Knoevenagel Condensation

“…The solvent of the ltrate was evaporated under vacuum and products were puri ed by column chromatography (ethyl acetate / hexane 1:5). All of the products were synthetic 41 and their characterization was conducted by comparing their melting points and spectral data ( 1 HNMR and 13 CNMR) with authentic samples, Figure S1-8. To estimate the yields of the reactions GC was used.…”