Iminium ion catalysis: direct comparison of imidazolidinone and diarylprolinol ether reactivity

Brazier, John B and Hopkins, Greg P and Jirari, Meriem and Mutter, Shaun and Pommereuil, Ronan and Samulis, Leopold and Platts, James A and Tomkinson, Nicholas C.O. (2011) Iminium ion catalysis: direct comparison of imidazolidinone and diarylprolinol ether reactivity. Tetrahedron Letters, 52 (21). pp. 2783-2785. ISSN 0040-4039 (https://doi.org/10.1016/j.tetlet.2011.03.129)

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Abstract

Comparison of the relative reactivities of the benchmark catalysts for iminium ion catalysed Diels-Alder cycloaddition under optimised literature conditions showed the imidazolidinone scaffold to possess significantly superior levels of activity in the Diels-Alder cycloaddition when compared to diarylprolinol silyl ethers.