Synthesis 2017; 49(12): 2621-2631
DOI: 10.1055/s-0036-1588176
short review
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 2,4-Disubstituted Quinoline Derivatives via A3-Coupling: An EcoScale Evaluation

Shivani Naidoo
School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, 3209, South Africa   Email: Jeenav1@ukzn.ac.za
,
Vineet Jeena*
School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, 3209, South Africa   Email: Jeenav1@ukzn.ac.za
› Author Affiliations
Supported by: National Research Foundation of South Africa Thuthuka Grant (TTK150609119011)
Further Information

Publication History

Received: 10 February 2017

Accepted after revision: 28 March 2017

Publication Date:
26 April 2017 (online)


Abstract

The 2,4-disubstituted quinoline moiety is an important building block for numerous biologically active and industrially useful compounds. These elegant compounds can be synthesised via the three-component coupling between an aldehyde, amine, and alkyne commonly referred to as A3-coupling. This short review aims to give an overview of the progress made towards disubstituted quinoline derivatives using this innovative methodology.

1 Introduction

2 Applications of the Quinoline Moiety

2.1 Antimicrobial Properties

2.2 Anti-inflammatory Properties

2.3 Anticonvulsant Properties

2.4 Photophysical Properties

3 Synthesis Based on A3-Coupling

3.1 Copper-Catalysed Systems

3.2 Iron-Catalysed Systems

3.3 Miscellaneous Systems

3.3.1 Montmorillonite Clays

3.3.2 Polyoxometalates

3.3.3 Rare Earth Metals

3.3.4 Al2O3 Nanoparticles/Methanesulfonic Acid

4 Proposed Reaction Mechanism

5 EcoScale Evaluation

6 Conclusion

7 Appendix