Metal-Organic Frameworks as Catalysts for Oxidation Reactions.
This Concept is aimed at describing the current state of the art in metal-organic frameworks (MOFs) as heterogeneous catalysts for liquid-phase oxidations, focusing on three important substrates, namely, alkenes, alkanes and alcohols. Emphases are on the nature of active sites that have been incorporated within MOFs and on future targets to be set in this area. Thus, selective alkene epoxidation with peroxides or oxygen catalyzed by constitutional metal nodes of MOFs as active sites are still to be developed. Moreover, no noble metal-free MOF has been reported to date that can act as a general catalyst for the aerobic oxidation of primary and secondary aliphatic alcohols. In contrast, in the case of alkanes, a target should be to tune the polarity of MOF internal pores to control the outcome of the autooxidation process, resulting in the selective formation of alcohol/ketone mixtures at high conversion.
School of Chemistry, Madurai Kamaraj University, Tamil Nadu, 625 021, India. admguru@gmail.com.|Instituto Universitario de Tecnología Química CSIC-UPV, Av. De los Naranjos s/n, 46022, Valencia, Spain. admguru@gmail.com.
Amarajothi
A
Dhakshinamoorthy
Centre of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
Abdullah M
AM
Asiri
Instituto Universitario de Tecnología Química CSIC-UPV, Av. De los Naranjos s/n, 46022, Valencia, Spain. hgarcia@qim.upv.es.|Centre of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia. hgarcia@qim.upv.es.
Hermenegildo
0000-0002-9664-493X
H
Garcia
chemoselectivity; epoxidation; heterogeneous catalysis; metal-organic frameworks; oxidation