作者:Philippe Renaud、Tanja Kolly-Kovač
DOI:10.1055/s-2005-865358
日期:——
An approach for the synthesis of lignans related to the podophyllotoxin family is reported. The key reaction is a highly diastereoselective iodoacetal cyclization under iodine atom transfer conditions followed by a homolytic aromatic substitution. The second aromatic ring is introduced at a later stage via addition of aryllithium to an aryl ketone. A novel and very mild method for the deoxygenation
报告了一种合成与鬼臼毒素家族相关的木脂素的方法。关键反应是在碘原子转移条件下的高度非对映选择性碘缩醛环化,然后是均裂芳族取代。第二个芳环在稍后阶段通过将芳基锂添加到芳基酮中引入。描述了一种新颖且非常温和的中间体叔苄醇脱氧方法。