Asymmetric Synthesis of the Diterpenoid Marine Toxin (+)-Acetoxycrenulide
作者:Ting-Zhong Wang、Emmanuel Pinard、Leo A. Paquette
DOI:10.1021/ja9533609
日期:1996.1.1
dimethylacetamide at 220 °C promotes sequential 1,2-elimination and Claisenrearrangement. The cyclooctenone core of the target is formed in this step. The final stages of the synthesis involve a series of fully stereoselective reactions including Simmons−Smith cyclopropanation and controlled Dibal-H reduction. The naturally occurring dextrorotatory enantiomer of acetoxycrenulide was ultimately acquired