Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Control in advanced biofuels synthesis via alcohol upgrading: catalyst selectivity to n ‐butanol, sec ‐butanol or isobutanol

Wingad, Richard, Birch, Laurence, Farndon, Joshua, Lee, Jason, Pellow, Katy J. and Wass, Duncan F. ORCID: 2023. Control in advanced biofuels synthesis via alcohol upgrading: catalyst selectivity to n ‐butanol, sec ‐butanol or isobutanol. ChemCatChem , e202201410. 10.1002/cctc.202201410

[thumbnail of cctc.202201410.pdf] PDF - Published Version
Available under License Creative Commons Attribution.

Download (2MB)
License URL:
License Start date: 9 December 2022


Ruthenium complexes with tetradentate PNNP donor ligands demonstrate a marked change in selectivity compared to analogous bis bidentate PN complexes in Guerbet catalysis, producing mixtures of n‐butanol (17 %), sec‐butanol (14 %) and ethyl acetate (66 %) rather than the usual 90 %+ selectivity to n‐butanol. Tridentate PNP ruthenium complexes such as [Ru(H)(Cl)(CO)(Ph2PCH2CH2NHCH2CH2PPh2)] also produce sec‐butanol and, in optimized conditions (120 °C, 10 mol% NaOEt base), achieve 71 % selectivity to this butanol isomer. The same tri‐ and tetradentate complexes are efficient catalysts for the conversion of methanol/ethanol mixtures to isobutanol (up to 97 % selectivity). In this way, judicious choice of ligand within this general catalyst family allows selectivity to three butanol isomers of interest as fuel molecules.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Additional Information: License information from Publisher: LICENSE 1: URL:
Publisher: Wiley
ISSN: 1867-3880
Funders: EPSRC UK Catalysis Hub, BP
Date of First Compliant Deposit: 16 January 2023
Date of Acceptance: 9 December 2022
Last Modified: 14 Jun 2023 22:20

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics