ChemInform Abstract: Diels-Alder Reactions with an α,β-Unsaturated Aldehyo Sugar. A Route to 6-Oxabicyclo(3.2.1)octanes.
Abstract
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ChemInform Abstract
Diels-Alder reaction of the sugar (I) with the diene (II) produces a mixture of the cyclohexenes (IIIa) and (IVa). The derivatives (IIIc) and (IVc), obtained via reduction and acetylation, give the bridged title systems (V) and (VI) (yields not given) upon acidic treatment. The method represents a short approach to this class of compounds in a stereocontrolled manner.
