1-Deoxy-d-xylulose: Synthesis Based on Molybdate-Catalyzed Rearrangement of a Branched-Chain Aldotetrose
Organic Letters2001Vol. 3(24), pp. 3819–3822
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Abstract
1-Deoxy-D-xylulose has been prepared in seven steps and approximately 21% overall yield from 2,3-O-isopropylidene-D-erythrono-1,4-lactone. The key reaction involves transformation of a branched-chain aldotetrose to the 1-deoxy-2-ketopentose catalyzed by molybdic acid. Other branched-chain aldotetroses containing bulkier substituents at C2 also engage in the conversion, suggesting routes to protected 2-ketoses and alpha-ketoacids/esters. This synthetic route mimics reactions of the non-mevalonate isoprenoid pathway in plants and bacteria. [reaction: see text]
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