Gulcemal, Suleyman, Gulcemal, Derya, Whitehead, George FS and Xiao, Jianliang ORCID: 0000-0003-2010-247X
(2016)
Acceptorless Dehydrogenative Oxidation of Secondary Alcohols Catalysed by Cp*Ir<SUP>III</SUP>-NHC Complexes.
CHEMISTRY-A EUROPEAN JOURNAL, 22 (30).
pp. 10513-10522.
Text
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Abstract
A series of new Ir(III) complexes with carbene ligands that contain a range of benzyl wingtip groups have been prepared and fully characterised by NMR spectroscopy, HRMS, elemental analysis and X-ray diffraction. All the complexes were active in the acceptorless dehydrogenation of alcohol substrates in 2,2,2-trifluoroethanol to give the corresponding carbonyl compounds. The most active complex bore an electron-rich carbene ligand; this complex was used to catalyse the highly efficient and chemoselective dehydrogenation of a wide range of secondary alcohols to their respective ketones, with turnover numbers up to 1660. Mechanistic studies suggested that the turnover of the dehydrogenation reaction is limited by the H2 -formation step.
Item Type: | Article |
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Uncontrolled Keywords: | acceptorless dehydrogenation, alcohols, carbenes, iridium, oxidation |
Depositing User: | Symplectic Admin |
Date Deposited: | 22 Feb 2018 16:35 |
Last Modified: | 05 Oct 2023 09:26 |
DOI: | 10.1002/chem.201601648 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3018291 |