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Liquid-phase permethylation of diethylenetriamine using methanol over robust composite copper catalysts

Jiang, Fan, Yan, Zhen, Chen, Xuan, Li, Xinlei, Streiff, Stéphane and Pera Titus, M. 2023. Liquid-phase permethylation of diethylenetriamine using methanol over robust composite copper catalysts. Catalysis Science & Technology 13 (1) , pp. 187-194. 10.1039/D2CY01454H

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Abstract

Pentamethyldiethylenetriamine is a permethylated polyamine that is widely used to prepare foam polyurethane. The current technology for its synthesis relies on diethylenetriamine methylation with formaldehyde under H2. This route is selective, but the use of formaldehyde raises safety and environmental concerns. Herein we present an alternative non-toxic route using methanol as greener and cheaper methylating reagent. The reaction proceeds fast and selectively over composite copper catalysts with a pentamethyldiethylenetriamine yield of 75% and resistance to sintering.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Royal Society of Chemistry
ISSN: 2044-4753
Date of First Compliant Deposit: 5 December 2022
Date of Acceptance: 20 November 2022
Last Modified: 05 May 2023 15:12
URI: https://orca.cardiff.ac.uk/id/eprint/154670

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