Synthesis 2022; 54(02): 295-314
DOI: 10.1055/a-1645-3254
short review

Transition Metal Complex Catalyzed Photo- and Electrochemical (De)hydrogenations Involving C=O and C=N Bonds

Igor Fokin
a   Institut für Anorganische Chemie, Universität Göttingen, Tammannstr. 4, 37077 Göttingen, Germany
,
Kai-Thorben Kuessner
a   Institut für Anorganische Chemie, Universität Göttingen, Tammannstr. 4, 37077 Göttingen, Germany
,
Inke Siewert
a   Institut für Anorganische Chemie, Universität Göttingen, Tammannstr. 4, 37077 Göttingen, Germany
b   International Center for Advanced Energy Studies, Universität Göttingen, Tammannstr. 4, 37077 Göttingen, Germany
› Author Affiliations
We grateful acknowledge support from the Georg-August-Universität Göttingen.


Abstract

Herein, we summarize the photo- and electrochemical protocols for dehydrogenation and hydrogenations involving carbonyl and imine functions. The three basic principles that have been explored to interconvert such moieties with transition metal complexes are discussed in detail and the substrate scope is evaluated. Furthermore, we describe some general thermodynamic and kinetic aspects of such electro- and photochemically driven reactions.

1 Introduction

2 Dehydrogenation Reactions

2.1 Electrochemical Dehydrogenations Using High-Valent Metal Species

2.2 Electrochemical Dehydrogenations Involving Metal Hydride species

2.3 Photochemically Driven Dehydrogenation

3 Hydrogenation Reactions

3.1 Electrochemical Protocols

3.2 Photochemical Protocols

4 Conclusion

5 Abbreviations

Supporting Information



Publication History

Received: 14 August 2021

Accepted after revision: 15 September 2021

Accepted Manuscript online:
15 September 2021

Article published online:
23 November 2021

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