
Journal of Organic Chemistry p. 3988 - 3990 (1992)
Update date:2022-07-29
Topics:
Hu, Zhongying
Lakshmikantham, M. V.
Cava, Michael P.
Becher, Jan
Hansen, Thomas
Jorgensen, Tine
N-Methylthionomaleimide (6) has been synthesized.It is the first example of a thionomaleimide unsubstituted on the olefinic C atoms.Its dienophilic behavior at the olefinic center, with representative dienes (symmetrical and unsymmetrical), has been investigated.There is appreciable regioselectivity with terminally oxygenated unsymmetrical dienes, the O-substituted carbon of the diene adding preferentially to the thiono-substituted end of the olefin.
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