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Enantioselective oxygenation of exocyclic methylene groups by a manganese porphyrin catalyst with a chiral recognition site

Abstract

The natural enzyme cytochrome P450 is widely recognised for its unique ability to catalyse highly selective oxygen insertion reactions into unactivated C–H bonds under mild conditions. Its exceptional potential for organic synthesis served as an inspiration for the presented biomimetic hydroxylation approach. Via a remote hydrogen bonding motif a high enantioselectivity in the manganese-catalysed oxygenation of quinolone analogues (27 examples, 18-64% yield, 80-99% ee) was achieved. The site-selectivity was completely altered in favour of a less reactive but more accessible position.

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Article information


Submitted
02 Dec 2019
Accepted
13 Jan 2020
First published
14 Jan 2020

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2020, Accepted Manuscript
Article type
Edge Article

Enantioselective oxygenation of exocyclic methylene groups by a manganese porphyrin catalyst with a chiral recognition site

F. Burg, S. Breitenlechner, C. Jandl and T. Bach, Chem. Sci., 2020, Accepted Manuscript , DOI: 10.1039/C9SC06089H

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