Visible-Light-Promoted Iridium(III)-Catalyzed Acceptorless Dehydrogenation of N-Heterocycles at Room Temperature.

Content Provider	Europe PMC
Author	Mejuto, Carmen Ibáñez-Ibáñez, Laura Guisado-Barrios, Gregorio Mata, Jose A.
Copyright Year	2022
Abstract	An effective visible-light-promotediridium(III)-catalyzed hydrogenproduction from N-heterocycles is described. A single iridium complexconstitutes the photocatalytic system playing a dual task, harvestingvisible-light and facilitating C–H cleavage and H2 formation at room temperature and without additives. The presenceof a chelating C–N ligand combining a mesoionic carbene ligandalong with an amido functionality in the IrIII complexis essential to attain the photocatalytic transformation. Furthermore,the IrIII complex is also an efficient catalyst for thethermal reverse process under mild conditions, positioning itselfas a proficient candidate for liquid organic hydrogen carrier technologies(LOHCs). Mechanistic studies support a light-induced formation ofH2 from the Ir–H intermediate as the operating modeof the iridium complex.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC9128065&blobtype=pdf
Journal	ACS Catalysis [ACS Catal]
Volume Number	12
DOI	10.1021/acscatal.2c01224
PubMed Central reference number	PMC9128065
Issue Number	10
PubMed reference number	35633898
e-ISSN	21555435
Language	English
Publisher	American Chemical Society
Publisher Date	2022-05-10
Access Restriction	Open
Rights License	Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). © 2022 The Authors. Published by American Chemical Society
Subject Keyword	photocatalysis iridium N-heterocycles hydrogenation dehydrogenation LOHCs hydrogen storage
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis