Total Stereoselective Synthesis of (+)-Goniothalesdiol
作者:M. Carmen Carreño、Gloria Hernández-Torres、Antonio Urbano、Françoise Colobert
DOI:10.1021/ol0523603
日期:2005.11.1
The stereoselective synthesis of (+)-goniothalesdiol (1) was accomplished in nine steps starting from commercially available (-)-(2S,3s)dimethyl D-tartrate (3). The key features were a completely diastereoselective reduction of beta-ketosulfoxide to generate the stereogenic center at C-5 in 7 and formation of the 2,5-cis-substituted tetrahydrofuran ring in 10 from a stereoselective Et3SiH/TMSOTf-promoted reductive cyclization/ deoxygenation.