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Paper
Org. Biomol. Chem., 2005, 3, 239 - 244, DOI: 10.1039/b415023f
Imidazolinium salts as catalysts for the aza-Diels–Alder reaction
Václav Jur
ík and René Wilhelm
Various easily accessible imidazolinium salts have been found to be capable of catalysing an aza-Diels–Alder reaction with a range of imines and Danishefsky's diene, giving the desired products in good to excellent yields. The influence of the counter-anions on the reactivity has been explored. These salts could contribute to the field of metal-free catalysis/organocatalysis.
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