β-Silyl Styrene As a Dienophile in the Cycloaddition with 3,5-Dibromo-2-pyrone for the Total Synthesis of (±)-Pancratistatin
作者:Yong-Geun Jung、Ho-Ung Kang、Hyun-Kyu Cho、Cheon-Gyu Cho
DOI:10.1021/ol202525a
日期:2011.11.4
route to (±)-pancratistatin was devised utilizing β-silyl styrene as a dienophile in the cycloaddition with 3,5-dibromo-2-pyrone. The TMS group incorporated in the cycloadduct permitted a facile elimination process for the eventual installation of the C(1)–OH function. Subsequent transformations including Curtius rearrangement and Bischler–Napieralski reactions completed the total synthesis of (±)-pancratistatin
利用β-甲硅烷基苯乙烯作为3,5-二溴-2-吡喃酮的环加成反应中的亲二烯体,设计了一种新的合成(±)-潘克拉汀汀的合成途径。并入环加成物中的TMS组允许最终安装C(1)-OH功能的便捷消除过程。随后的转化包括Curtius重排和Bischler-Napieralski反应完成了(±)-潘克拉汀的全合成。