Preparative Organic Chemistry
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ChemInform Abstract: Asymmetric Diels-Alder Reactions with a Chiral Spirodione, (6S,7S,10R)- 7-Isopropyl-10-methyl-1-oxaspiro(5.5)undec-3-ene-2,5-dione.
First published: April 30, 1996
Abstract
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ChemInform Abstract
The title compound (V) represents a new class of auxiliary-based chiral synthons. Diels-Alder reactions are carried out using (V) in the presence of Et2AlCl as Lewis acid catalyst to give the cycloadducts (VII) and (XI) as single diastereomers.
