Bio-based amines from renewable resources through catalytic sustainable processes (BIO2BIA)

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Sulfonic Acid-Functionalized (Bio)Materials as Catalysts for Efficient Amide Bond Synthesis

Publication . Pereira, Joana R.; Corvo, Marta C.; Peixoto, Andreia F.; Aguiar-Ricardo, Ana; Marques, M. Manuel B.; DQ - Departamento de Química; LAQV@REQUIMTE; DCM - Departamento de Ciência dos Materiais; CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N); Wiley - VCH Verlag GmbH & CO. KGaA

Sulfonic acid carbon-(bio)based and natural clays-based catalysts were prepared and investigated for the first time as heterogeneous catalysts for amide bond synthesis by a Ritter reaction. The different SO3H-catalysts were screened using benzyl alcohol and acetonitrile as model substrates, and MWCNT-CSP revealed to be an efficient catalyst, affording the amide in 75 % yield. The practical utility of the catalysts was demonstrated by a diverse range of amides, obtained from alcohols and nitriles, in moderate to good yields. Biomass derived platform alcohols, such as 5-HMF and furfuryl alcohol, were also tested as potential building blocks for the synthesis of biopolymers. The SO3H-catalysts revealed to be a highly efficient and environmentally friendly alternative to the conventional acid catalysts commonly used in the Ritter reaction.

2023-01-29Artigo científico

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Entidade financiadora

Fundação para a Ciência e a Tecnologia

Programa de financiamento

CEEC IND 3ed

Número da atribuição

2020.01614.CEECIND/CP1596/CT0007