Synthesis 2019; 51(17): 3171-3204
DOI: 10.1055/s-0037-1611822
review
© Georg Thieme Verlag Stuttgart · New York

Transition Metal-Catalyzed Directed C(sp3)–H Functionalization of Saturated Heterocycles

Daniele Antermite
,
James A. Bull
We gratefully acknowledge The Royal Society for University Research Fellowship (UF140161 to J.A.B.), URF appointed grant (RG150444) and URF enhancement grant (RGF\EA\180031).
Weitere Informationen

Publikationsverlauf

Received: 08. März 2019

Accepted after revision: 03. April 2019

Publikationsdatum:
17. Juni 2019 (online)


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Abstract

Synthetic methods that can readily access saturated heterocycles with different substitution patterns and with control of stereo- and regiochemistry are of huge potential value in the development of new medicinal compounds. Directed C–H functionalization of simple and commercially available precursors offers the potential to prepare diverse collections of such valuable compounds that can probe the different available exit vectors from a ring system. Nonetheless, the presence of the Lewis basic heteroatoms makes this a significant challenge. This review covers recent advances in the catalytic C–H functionalization of saturated heterocycles, with a view to different heterocycles (N, O, S), substitution patterns and transformations.

1 Introduction

2 α-C–H Functionalization with Directing Group on Nitrogen

3 C–H Functionalization at Unactivated C(3), C(4), and C(5) Positions

3.1 C–H Functionalization at C(3) with Directing Groups at C(2)

3.2 C–H Functionalization at C(3), C(4), and C(5): Directing Groups at C(4) and C(3)

4 Transannular C–H Functionalization

5 Conclusion