Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Chemoselective hydrogenation of α, β-unsaturated aldehyde over Rh nanoclusters confined in metal-organic framework

Abstract

Selective hydrogenation of α, β-unsaturated aldehyde to achieve high selectivity towards a desirable product is still a great challenge, mainly because of the complex conjugate system. Herein, Rh nanoclusters encapsulated in MIL-101 (Cr), synthesized by double solvents method, are able to selectively hydrogenate C=C of α, β-unsaturated aldehyde cinnamaldehyde and achieve over 98% selectivity with conversion of 98% to saturated aldehyde in mild condition. The Fourier transform infrared spectroscopy confirms that MIL-101 acts as aldehyde protector to suppress the reactivity of C=O, and the X-ray photoelectron spectroscopy (XPS) data indicates that the electropositive Rh, owing to the electron transfer from Rh to MIL-101, preferentially absorbs C=C rather than C=O leading to improvement of the selectivity of saturated aldehyde. In addition, Rh@MIL-101 can also efficiently hydrodefluorinate of aryl fluoride with good stability. This work gives out a basic strategy to develop other selective heterogeneous catalysts via structure modulation for synergetic catalysis.

Back to tab navigation

Supplementary files

Article information


Submitted
16 Feb 2020
Accepted
07 May 2020
First published
11 May 2020

J. Mater. Chem. A, 2020, Accepted Manuscript
Article type
Paper

Chemoselective hydrogenation of α, β-unsaturated aldehyde over Rh nanoclusters confined in metal-organic framework

Q. Liu, Y. Li, Y. Fan, C. Su and G. Li, J. Mater. Chem. A, 2020, Accepted Manuscript , DOI: 10.1039/D0TA01845G

Social activity

Search articles by author

Spotlight

Advertisements