Abstract
A tri-ing reaction: An asymmetric Diels-Alder cycloaddition of δ,δ-disubstituted 2,4-dienones is possible through the trienamine catalysis of cinchona-based primary amines (see scheme). An array of electron-deficient dienophiles, such as N-substituted maleimides and 3-alkenyl oxindoles, were tolerated, and multifunctional cyclohexene derivatives were obtained in excellent stereoselectivity and with high diastereomer ratios.
Original language | English |
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Journal | Angewandte Chemie, Int. Ed. |
Volume | 51 |
Pages (from-to) | 4401-4402 |
ISSN | 1433-7851 |
Publication status | Published - 27 Apr 2012 |