Tetrahedron Letters p. 5595 - 5598 (1989)
Update date:2022-09-26
Topics:
Poll, T.
Hady, A. F. Abdel
Karge, R.
Linz, G.
Weetman, J.
Helmchen, G.
(S)-N-Methyl-2-hydroxysuccinimide, easily available from natural (S)-malic acid, supplements the previously introduced (R)-pantolactone as chiral auxiliary for asymmetric Diels-Alder reactions of enoates, but yields products of opposite configuration.Practical large-scale preparations of enantiomer pairs of synthetically important Diels-Alder adducts, including adducts from crotonates, are described.
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