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Synthesis of Isoquinuclidines from Highly Substituted Dihydropyridines via the Diels–Alder Reaction

Author:
Martin, Rhia M., Bergman, Robert G., Ellman, Jonathan A.
Source:
Organic letters 2013 v.15 no.3 pp. 444-447
ISSN:
1523-7052
Subject:
Lewis acids, additives, alkenes, chemical structure, cycloaddition reactions, regioselectivity
Abstract:
A stereo- and regioselective Diels–Alder reaction for the synthesis of highly substituted isoquinuclidines from dihydropyridines and electron-deficient alkenes has been developed. While reactions with activated dienophiles proceed readily under thermal conditions, the use of Lewis acid additives is necessary to facilitate cycloadditions for less reactive alkenes. This procedure affords the target compounds in high yields and diastereoselectivities.
Agid:
5786378