Issue 7, 2016

Chemoselective oxidant-free dehydrogenation of alcohols in lignin using Cp*Ir catalysts

Abstract

A remarkably effective method of chemoselective dehydrogenation of alcohols in lignin has been developed with an iridium catalyst. An additional operation of Zn/NH4Cl via a two-step one pot process could further promote the cleavage of the C–O bond in β-O-4 units in lignin. And this reaction system was also applicable to native lignin as the molecular weight of native lignin decreased obviously as detected by gel permeation chromatography (GPC). Additionally, this is the first to date generation of the by-product H2 from native lignin and the by-product was straightforwardly captured by 1-decene. A probable mechanistic pathway was also proposed with the help of density functional theory (DFT) calculations.

Graphical abstract: Chemoselective oxidant-free dehydrogenation of alcohols in lignin using Cp*Ir catalysts

Supplementary files

Article information

Article type
Paper
Submitted
30 Sep 2015
Accepted
06 Nov 2015
First published
06 Nov 2015

Green Chem., 2016,18, 2029-2036

Author version available

Chemoselective oxidant-free dehydrogenation of alcohols in lignin using Cp*Ir catalysts

R. Zhu, B. Wang, M. Cui, J. Deng, X. Li, Y. Ma and Y. Fu, Green Chem., 2016, 18, 2029 DOI: 10.1039/C5GC02347E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements