Loading…

Zn( ii )@TFP-DAQ COF: an efficient mesoporous catalyst for the synthesis of N -methylated amine and carbamate through chemical fixation of CO 2

Selective N -methylation and carbamate formation reactions were demonstrated via the chemical incorporation of CO 2 using a Zn-loaded TFP-DAQ COF (covalent organic framework) as an active catalyst under mild reaction conditions. The selective N -methylation and N -formylation reactions were performe...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2020-01, Vol.44 (3), p.744-752
Main Authors: Sarkar, Priyanka, Chowdhury, Arpita Hazra, Riyajuddin, Sk, Biswas, Surajit, Ghosh, Kaushik, Islam, Sk. Manirul
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Selective N -methylation and carbamate formation reactions were demonstrated via the chemical incorporation of CO 2 using a Zn-loaded TFP-DAQ COF (covalent organic framework) as an active catalyst under mild reaction conditions. The selective N -methylation and N -formylation reactions were performed by simply varying the type of solvent. The Zn( ii )@TFP-DAQ COF catalyst was characterized via different characterization techniques such as PXRD, FTIR, UV-vis, N 2 adsorption–desorption studies, FESEM and TEM. The catalyst material showed pores in the mesoporous region with a high surface area of 1117.375 m 2 g −1 . The as-synthesized material was applied as a cheap catalyst for the N -methylation of secondary amines and in carbamate formation reactions with high yields of the desired products up to 98.5% and 97%, respectively, with >99% selectivity. The catalyst was found to be completely heterogeneous and reusable for multiple reaction cycles.
ISSN:1144-0546
1369-9261
DOI:10.1039/C9NJ04673A