Manganese catalysed dehydrogenative synthesis of polyureas from diformamide and diamines

Angus McLuskie, Claire N. Brodie, Michele Tricarico, Chang Gao, Gavin Peters, Aaron B. Naden, C. Logan Mackay, Jin-Chong Tan*, Amit Kumar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

We report here the synthesis of polyureas from the dehydrogenative coupling of diamines and diformamides. The reaction is catalysed by a manganese pincer complex and releases H2 gas as the only by-product making the process atom-economic and sustainable. The reported method is greener in comparison to the current state-of-the-art production routes that involve diisocyanate and phosgene feedstock. We also report here the physical, morphological, and mechanical properties of synthesized polyureas. Based on our mechanistic studies, we suggest that the reaction proceeds via isocyanate intermediates formed by the manganese catalysed dehydrogenation of formamides.
Original languageEnglish
Pages (from-to)3551-3557
Number of pages7
JournalCatalysis Science & Technology
Volume13
Issue number12
Early online date15 May 2023
DOIs
Publication statusPublished - 21 Jun 2023

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