Total Synthesis of (+)-(2′S,3′R)-Zoapatanol Exploiting the B-Alkyl Suzuki Reaction and the Nucleophilic Potential of the Sulfinyl Group
作者:Sadagopan Raghavan、Vaddela Sudheer Babu
DOI:10.1002/chem.201003666
日期:2011.7.18
stereoselective synthesis of the diterpenoid oxepane (+)‐zoapatanol is described. The key steps include a B‐alkyl Suzuki cross‐coupling reaction for the stereoselective synthesis of trisubstituted alkenes, creation of the two stereogenic centers on the oxepane ring by heterofunctionalization of an alkene through substrate control exploiting the nucleophilic potential of an intramolecular sulfinyl group, and transformation
The synthesis of 2-substituted 1,4-diacetoxybutadiene derivatives with a partial control of stereochemistry is described from two potentially precursor enals by a judicious choice of experimental conditions (Ac2O/DMAP in Et3N). These conditions have been successfully applied in the first total synthesis of caulerpenyne. (C) 2003 Elsevier Science Ltd. All rights reserved.