Abstract
A novel Prins cascade process for the synthesis of 1,9-dioxa-4- azaspiro[5.5]undecane derivatives by the coupling of aldehydes with N-(4-hydroxy-2-methylenebutyl)-N-(2-hydroxyethyl)-4-methylbenzenesulfonamide has been developed. This is the first report of the synthesis of spiromorpholinotetrahydropyran derivatives through a Prins bicyclization.
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