Silver Nanoparticles Architectured HMP as a Recyclable Catalyst for Tetramic Acid and Propiolic Acid Synthesis through CO2 Capture at Atmospheric Pressure. Issue 4 (7th January 2020)

• Record Type: Journal Article
• Authors: Ghosh, Swarbhanu; Ghosh, Aniruddha; Riyajuddin, Sk; Sarkar, Somnath; Chowdhury, Arpita Hazra; Ghosh, Kaushik; Islam, Sk. Manirul
• Is Part Of: ChemCatChem. Volume 12:Issue 4(2020)
• Page Start: 1055
• Page End: 1067
• Publication Date: 2020-01-07
• Subjects: Hypercrosslinked microporous polymer -- Carbon dioxide fixation reaction -- Tetramic acids -- Propiolic acids -- Heterogeneous catalysis.; Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201901461
• Languages: English
• ISSNs: 1867-3880

Abstract

Abstract: The recent advancement on the tailored synthesis of hypercrosslinked microporous polymer (HMP‐2) has assembled significant concentration by the virtue of its adjustable porosity, operative design and absolutely ordering structure. This perfectly structured Ag NPs supported carbocatalyst (Ag‐HMP‐2) has been synthesized by Friedel‐Crafts alkylation between 4, 4′‐Bis(bromomethyl)‐1, 1′‐biphenyl and carbazole over anhydrous iron(III)chloride catalysis followed by the appending of the silver nanoparticles (Ag NPs) onto the material. The silver nanoparticle was decorated over the HMP‐2 to prepare the corresponding catalyst (Ag‐HMP‐2). The characterization of the newly produced material has been conducted by N2 adsorption/desorption studies, XPS, FE‐SEM, transmission electron microscopy (TEM) and Powder X‐ray diffraction (PXRD) methods. This microporous catalyst has spectacular activities for the production of tetramic acids from various types of propargylic amine derivatives at 60 °C under atmospheric carbon dioxide pressure. Parallel attempt on fixation of CO2 was executed over terminal alkynes to synthesize propiolic acids under 1 atm pressure. The catalyst (Ag‐HMP‐2) exhibited sufficient recycling ability for the generation of tetramic acids and propiolic acids up to five catalytic runs without reduction in its catalytic activity. Abstract : CO2 fixation : Ag NPs are decorated at the surface of a modified hypercrosslinked microporous polymer HMP‐2 and resulting Ag‐HMP‐2 acts as a very efficient catalyst for the synthesis of tetramic acids from variety of propargylic amines derivatives at 60 °C and production of propiolic acids from terminal alkynes at 80 °C under atmospheric CO2 pressure.