Journal
MOLECULES
Volume 27, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/molecules27041304
Keywords
Diels-Alder reaction; green solvent; bio-based solvent; deep eutectic solvents; water
Funding
- Portuguese Agency for Scientific Research Fundacao para a Ciencia e a Tecnologia (FCT) [UIDB/00313/2020, UIDP/00313/2020]
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This review provides insights into the recent advances in sustainable Diels-Alder reactions since 2010, with a focus on various environmentally benign solvent systems. The scope, efficiency, selectivity, and reaction mechanism of these reaction media are discussed.
Diels-Alder cycloaddition reaction is one of the most powerful strategies for the construction of six-membered carbocyclic and heterocyclic systems, in most cases with high regio- and stereoselectivity. In this review, an insight into the most relevant advances on sustainable Diels-Alder reactions since 2010 is provided. Various environmentally benign solvent systems are discussed, namely bio-based derived solvents (such as glycerol and gluconic acid), polyethylene glycol, deep eutectic solvents, supercritical carbon dioxide, water and water-based aqueous systems. Issues such as method's scope, efficiency, selectivity and reaction mechanism, as well as sustainability, advantages and limitations of these reaction media, are addressed.
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