Stereoselective synthesis of - and -1,2-diols from diketo sulfides via -3,4-dihydroxythiolanes
作者:Juzo Nakayama、Shoji Yamaoka、Masamatsu Hoshino
DOI:10.1016/s0040-4039(00)95425-x
日期:1987.1
Intramolecular reductive coupling reaction of a series of diketo sulfides () by a low-valent titanium reagent at 0 °C in tetrahydrofuran leads to -3,4-dihydroxythiolanes () exclusively in 67–89% yields. Desulfurization of by Raney nickel in ethanol affords either - or or -1,2-diols () in 51–82% yields.
低价钛试剂在0°C下于四氢呋喃中的一系列二酮硫醚()的分子内还原偶联反应仅产生67-89%的-3,4-二羟基硫杂环戊烷()。阮内镍在乙醇中的脱硫产生-或-1,2-二醇(),产率为51-82%。