Issue 6, 2019

Design of high-performance heterogeneous catalysts using hydrotalcite for selective organic transformations

Abstract

Hydrotalcite (HT) is an anionic layered double hydroxide clay, consisting of positively charged Brucite-like layers. To compensate for the positive charges, various inorganic and organic anions are located within the interlayer along with water. Hydrotalcite exhibits the characteristic cation-exchange features of the Brucite-like layer, the anion exchangeability of the interlayer, a memory effect, and tunable basicity and adsorption capacity. Based on these features, nanostructured metal species on HTs were prepared in a much simpler way than those previously reported; this provides a strong protocol for the preparation of catalytically active species with uniform composition that are evenly distributed on the solid surface. This review focuses on the design of high-performance heterogeneous catalysts using HT and HT-like compounds for selective molecular transformations under liquid-phase conditions. Catalytic systems that use HT offer significant benefits for achieving green organic syntheses because of the following: (i) they use nonpolluting reagents, (ii) they exhibit high catalytic activities and selectivities, (iii) they tolerate a wide range of substrates, and (iv) a simple work-up procedure facilitates easy catalyst recovery and reuse. Furthermore, highly atom-economical catalytic reactions, such as multiple reactions in a single pot, can be realized by using the novel HT-based catalysts.

Graphical abstract: Design of high-performance heterogeneous catalysts using hydrotalcite for selective organic transformations

Article information

Article type
Critical Review
Submitted
29 Oct 2018
Accepted
29 Jan 2019
First published
30 Jan 2019

Green Chem., 2019,21, 1361-1389

Design of high-performance heterogeneous catalysts using hydrotalcite for selective organic transformations

K. Kaneda and T. Mizugaki, Green Chem., 2019, 21, 1361 DOI: 10.1039/C8GC03391A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements