Jump to main content
Jump to site search

Issue 11, 2018
Previous Article Next Article

Melamine-derived graphitic carbon nitride as a new effective metal-free catalyst for Knoevenagel condensation of benzaldehyde with ethylcyanoacetate

Author affiliations

Abstract

Graphitic carbon nitride was prepared by bulk and hard template pyrolysis of melamine. The prepared g-C3N4 as well as N-doped carbon used for comparison exhibited a reasonable catalytic activity in the Knoevenagel condensation between benzaldehyde and ethylcyanoacetate yielding ethyl-α-cyanocinnamate (conversion of benzaldehyde up to 100%, yield of the desired product up to 51%). Under the studied reaction conditions, weak basic sites assigned as C–N[double bond, length as m-dash]C species are responsible for selective formation of the desired product. An increase of tertiary nitrogen content leads to an increase of benzaldehyde conversion with a simultaneous decrease of selectivity towards ethyl-α-cyanocinnamate due to a higher basicity. Carbon nitride obtained using silica as a hard template allows achieving the highest yield of the desired product (50.9%).

Graphical abstract: Melamine-derived graphitic carbon nitride as a new effective metal-free catalyst for Knoevenagel condensation of benzaldehyde with ethylcyanoacetate

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Feb 2018, accepted on 08 May 2018 and first published on 09 May 2018


Article type: Paper
DOI: 10.1039/C8CY00253C
Citation: Catal. Sci. Technol., 2018,8, 2928-2937
  •   Request permissions

    Melamine-derived graphitic carbon nitride as a new effective metal-free catalyst for Knoevenagel condensation of benzaldehyde with ethylcyanoacetate

    N. D. Shcherban, P. Mäki-Arvela, A. Aho, S. A. Sergiienko, P. S. Yaremov, K. Eränen and D. Yu. Murzin, Catal. Sci. Technol., 2018, 8, 2928
    DOI: 10.1039/C8CY00253C

Search articles by author

Spotlight

Advertisements