Allantoin-modified Cu@NiCo-MOF nanocubes as an effective catalyst for propargylamine synthesis

https://doi.org/10.1016/j.matlet.2024.137015

https://authors.elsevier.com/a/1jSUc,3pssBzmQ（valid before September 07, 2024）

Abstract

Highly dispersed Cu atoms provide effective catalytic sites for propargylamine synthesis by an A3 coupling reaction. Herein, Cu@NiCo-MOF nanocubes were synthesized using Prussian blue analog NiCo-MOF (Ni3[Co(CN)6]2) as substrate, and the Cu loading and dispersion were improved by allantoin as linking agent (Cu@a-NiCo-MOF). Cu@a-NiCo-MOF exhibited a high percentage of Cu+&Cu0 (63 %, with the remainder being Cu2+), which showed high catalytic conversion (63.4 %) and selectivity (0.98) during propargylamine synthesis via an A3 coupling reaction, while NiCo-MOF exhibited very low conversion (3.74 %). The propargylamine conversion rate can reach as high as 8.95 mol/h•mol-Cu, which is attributed to highly dispersed Cu and significantly higher than values of reference catalysts.

Graphical abstract