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Schlagwörter:
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Zusammenfassung:
Despite tremendous advances in enantioselective catalysis of the Diels−Alder reaction, the use of simple α,β-unsaturated esters, one of the most abundant and useful class of dienophiles, is still severely limited in scope due to their low reactivity. We report here a catalytic asymmetric Diels−Alder methodology for a large
variety of α,β-unsaturated methyl esters and different dienes based on extremely reactive silylium imidodiphos-phorimidate (IDPi) Lewis acids. Mechanistic insights from accurate domain-based local pair natural orbital coupled-cluster (DLPNO-CCSD(T)) calculations rationalize the catalyst control and stereochemical outcome.
