Modified Preparation of (2R)-2-tert-Butyl-6-methyl-4H-1,3-dioxin-4-one; a Chiral Acetylacetic Acid Derivative for the Synthesis of Enantiopure Compounds
- 1 January 1992
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1992 (1/2) , 39-40
- https://doi.org/10.1055/s-1992-34162
Abstract
An improved synthesis of the title compound in ca. 45% yield on up to a 174 mmol scale is reported. Bromination of (2R,6R)-2-tert-butyl-6-methyl-1, 3-dioxan-4-one gives a mixture of mono- and dibromides which must be purified by chromatography to remove impurities which may poision the palladium catalyst in the following dehalogenation step.Keywords
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