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Zn (II) @ TFP-DAQ COF: An efficient mesoporous catalyst for the synthesis of N-methylated amine and carbamate through chemical fixation of CO2

Abstract

Selective N-methylation and carbamate formation reactions are demonstrated via chemical incorporation of CO2 using Zn loaded TFP-DAQ COF (Covalent Organic Framework) as active catalyst under mild reaction condition. Selective N-methylation and N-formylation reactions are occurred by simply varying the type of solvent. The Zn (II) @ TFP- DAQ COF catalyst is characterized by different characterization tools like PXRD, FTIR, UV-vis, N2 adsorption–desorption studies, FESEM and TEM. The catalyst material showed pores in mesoporous region with high surface area 1117.375 m²/g. The synthesized material is applied as a cheap catalyst for N-methylation of secondary amines and in carbamate formation reactions with high yields of the desired products upto 98.5% and 97% respectively with > 99% selectivity. The catalyst is found to be completely heterogeneous and reusable for multiple reaction cycles.

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Publication details

The article was received on 11 Sep 2019, accepted on 28 Nov 2019 and first published on 29 Nov 2019


Article type: Paper
DOI: 10.1039/C9NJ04673A
New J. Chem., 2019, Accepted Manuscript

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    Zn (II) @ TFP-DAQ COF: An efficient mesoporous catalyst for the synthesis of N-methylated amine and carbamate through chemical fixation of CO2

    P. Sarkar, A. H. Chowdhury, R. Sk, S. Biswas, K. Ghosh and S. M. Islam, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ04673A

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