Formal Total Synthesis of Brevisamide by Using a Tandem Isomerization/C-O and C-C Bond Formation Reaction
作者:Shivalal Banoth、Saurabh Maity、Sudheer R. Kumar、J. S. Yadav、Debendra K. Mohapatra
DOI:10.1002/ejoc.201600142
日期:2016.5
stereoselective formal total synthesis of brevisamide is described that proceeds through a convergent pathway and utilizes our own tandem isomerization/C–O and C–C bond formation reaction as the key step to construct the trans-2,6-disubstituted dihydropyran ring system. Other significant reactions in this synthesis include an iodolactonization, a Crimmins-modified “non-Evans” syn aldol reaction, and a Ho
描述了一种高度立体选择性的短缩醛全合成,它通过收敛途径进行,并利用我们自己的串联异构化/C-O 和 C-C 键形成反应作为构建反式-2,6-二取代二氢吡喃环系统的关键步骤. 该合成中的其他重要反应包括碘内酯化、Crimmins 修饰的“非埃文斯”合成羟醛反应和 Horner-Wadsworth-Emmons 烯化。