Related Experiment Video
Updated: Jan 17, 2026

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
Published on: August 17, 2019
Inorganic SrMo1-x Ni x O3 -δ Perovskite Nanocrystals for Catalytic Reductive Etherification of Biobased Compounds
Lebohang Kekana1, Guoning Li2, Hui Li2
1Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, P.O. Box 542, Auckland Park, Johannesburg 2006, South Africa.
Abstract:
In this paper, we report on the influence of oxygen vacancies on the reductive etherification of aldehydes in the presence of multicationic inorganic SrMo1-x Ni x O3-δ perovskites. The oxygen vacancies were induced by manipulating the ABO3 structure of the perovskite by incorporating two different metal cations at the B-site. The prepared perovskites were found to possess a low surface area; however, XPS revealed the presence of oxygen vacancies in all perovskites because of structural defects. These perovskites were all active as catalysts in the reductive etherification reaction. The inorganic perovskites, SrMoO3, SrMo0.5Ni0.5O3-δ, and SrNiO3, were found to be the best performing catalysts because they possess the highest amount of oxygen vacancies. All of the prepared perovskites were 100% selective for the desired ether product. Although it is very active in the reductive etherification of aldehydes with primary alcohols, the perovskite catalyst did not facilitate the conversion of other carbonyl-containing molecules and the secondary alcohols.
More Related Videos
Related Concept Videos
Hydroboration-Oxidation of Alkenes
Alcohols from Carbonyl Compounds: Reduction
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Preparation of Amines: Reduction of Oximes and Nitro Compounds
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation
One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...

