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. 2022 Feb 10;61(17):e202114720. doi: 10.1002/anie.202114720

Scheme 17.

Scheme 17

The thermodynamics of the DA reaction between furoic acid 98 and maleimide 99 is improved in the presence of basic additives, due to the differences in acidity between the adduct 100 and the furan diene. [66]