A general approach to γ-lactones via osmium-catalyzed asymmetric dihydroxylation. Synthesis of (−)- and (+)-muricatacin.
作者:Zhi-Min Wang、Xiu-Lian Zhang、K.Barry Sharpless、Subhash C. Sinha、Anjana Sinha-Bagchi、Ehud Keinan
DOI:10.1016/s0040-4039(00)79001-0
日期:1992.10
γ-lactones have been prepared highly enantioselectively (92–99% ee) using either AD-mix-β or AD-mix-α with both β,γ- and γ,δ-unsaturated esters. The method is exemplified by the three-step synthesis of (−) and (+)-muricatacin in 74% yield and >99% ee.