Related Experiment Video
Updated: Sep 19, 2025

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Spinel ZnMn2O4 hollow nanospheres as an efficient catalyst for imine synthesis at near room temperature
Shipeng Wu1, Hao Zhang1, Qinghu Tang2
1School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, 2 North Cuihu Road, Kunming 650091, China. wenhao.fang@ynu.edu.cn.
Abstract:
A thermally driven contraction process can be used to synthesize ZnMn2O4 spinel hollow nanospheres. Material characterizations and theoretical calculations revealed that incorporating oxyphilic Zn into Mn5O8 induced abundant and highly accessible Mn3+ and oxygen vacancy active sites, and then boosted O2 adsorption-activation. Hence, ZnMn2O4 acts as a novel catalyst to enable efficient oxidative coupling of primary alcohols and amines in air at 30 °C, obviously outperforming previously reported transition metal oxide catalysts.
More Related Videos
07:47Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
Published on: November 27, 2015
10:57Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Related Concept Videos
Aldehydes and Ketones with Amines: Imine Formation Mechanism
Imines are formed under mildly acidic conditions. A pH of 4.5 is ideal for the reaction.
If the pH is low or the solution is too acidic, the reaction slows down in the...
Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview
Nitriles to Amines: LiAlH4 Reduction
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
Ziegler–Natta Chain-Growth Polymerization: Overview
Preparation of Amines: Reductive Amination of Aldehydes and Ketones