作者:Dengjin Wang、William A. Nugent
DOI:10.1021/jo0712143
日期:2007.9.1
[GRAPHICS]We have developed concise routes to a number of useful chiral 5-carbon synthetic building blocks using readily available: 0-1-methyl-2-deoxyribose as starting material. Novel transformations include the use of indium triflate to catalyze the oxidation of a methyl furanoside to the corresponding lactone with MCPBA and the Vasella-type fragmentation of a 5-iodo furanoside using chromium(II) chloride when zinc proved ineffective. In addition, 3,4-disubstitued piperidine derivatives were prepared without hydroxyl group protection via a simple reductive amination reaction.