Application of Arene−Ruthenium Chemistry to a Formal Total Synthesis of OF 4949 III
作者:Anthony J. Pearson、Penglie Zhang、Kieseung Lee
DOI:10.1021/jo960956l
日期:1996.1.1
A convergent formal total synthesis of OF 4949 III is described. Arene-ruthenium chemistry was used in the construction of the diaryl ether linkage in high yield, and cycloamidation under high dilution conditions (0.005 M) was achieved using DPPA as coupling reagent. SmI(2) was used to reductively remove the 2-iodoethyl ester protecting group in the presence of DMPU or HMPA.
描述了OF 4949 III的会聚形式全合成。芳烃-钌化学用于高产率地构建二芳基醚键,并使用DPPA作为偶联剂在高稀释条件(0.005 M)下实现环酰胺化。SmI(2)用于在DMPU或HMPA存在下还原性去除2-碘乙酯保护基。