Issue 16, 2020

Palladium-catalysed Heck-type alkenylation reactions in the synthesis of quinolines. Mechanistic insights and recent applications

Abstract

Quinoline and quinolone cores are present in a wide variety of pharmaceuticals, agrochemicals and materials as well as in ligands/catalysts in asymmetric synthesis. Transition metal catalysed based approaches have played a pivotal role in the development of the catalytic methods for their synthesis. This review presents recent developments on the palladium-catalysed Mizoroki–Heck reaction and its dehydrogenative variant (the Fujiwara–Moritani reaction), a C–H activation reaction that does not require the use of prefunctionalized coupling patterns for the synthesis of quinoline frameworks. The mechanistic understanding of both types of reactions and how the different reaction conditions affect the outcome and the regioselectivity for the synthesis of the quinoline core, which is crucial to achieve target-oriented synthesis successfully, is discussed through selected examples.

Graphical abstract: Palladium-catalysed Heck-type alkenylation reactions in the synthesis of quinolines. Mechanistic insights and recent applications

Article information

Article type
Minireview
Submitted
17 Apr 2020
Accepted
15 May 2020
First published
18 May 2020

Catal. Sci. Technol., 2020,10, 5345-5361

Palladium-catalysed Heck-type alkenylation reactions in the synthesis of quinolines. Mechanistic insights and recent applications

A. Carral-Menoyo, N. Sotomayor and E. Lete, Catal. Sci. Technol., 2020, 10, 5345 DOI: 10.1039/D0CY00789G

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