Oxidation of polyhydroxyalkyl - heterocycles by cerium (IV). A convenient route to pyrrole-2,5-dicarbaldehydes
作者:Antonio J Moreno-Vargas、Inmaculada Robina、JoséG Fernández-Bolaños、José Fuentes
DOI:10.1016/s0040-4039(98)02083-8
日期:1998.12
The synthesis of 3-ethoxycarbonyl-2,5-diformylpyrrole (2) from 3-ethoxycarbonyl-2-methyl-5-d-(arabino-tetritol-1-yl)pyrrole (1) by oxidation with ceric ammonium nitrate is described. When the reaction was applied to related furan derivatives, ethyl (5S,6R,7R)-2-acetyl-5,6,7,8-tetrabenzyloxyoct-2-enoate (8) was obtained as an mixture.
3-乙氧羰基-2,5- diformylpyrrole(合成2)由3-乙氧羰基-2-甲基-5- D-(阿拉伯-tetritol -1-基)吡咯(1通过用硝酸高铈铵氧化)进行说明。当将反应应用于相关的呋喃衍生物时,获得(5 S,6 R,7 R)-2-乙酰基-5,6,7,8-四苄氧基辛-2-烯酸乙酯(8)的混合物。