1-Deoxy-d-xylulose: Synthesis Based on Molybdate-Catalyzed Rearrangement of a Branched-Chain Aldotetrose
摘要:
[GRAPHICS]1-Deoxy-D-xylulose has been prepared in seven steps and similar to 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.
1-Deoxy-d-xylulose: Synthesis Based on Molybdate-Catalyzed Rearrangement of a Branched-Chain Aldotetrose
摘要:
[GRAPHICS]1-Deoxy-D-xylulose has been prepared in seven steps and similar to 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.