Reductive Cyclisation of Azidolactams with Bu<sub>3</sub>P/LiAlH<sub>4</sub>
作者:Michael J. Porter、Gurdeep S. Nandra、Jason M. Elliott
DOI:10.1055/s-2004-837292
日期:——
Octahydropyrrolo[2,3-b]pyrroles were synthesised by treatment of azidolactams successively with tri-n-butylphosphine and LiAlH4.
八氢吡咯并[2,3-b]吡咯是通过依次用三丁基膦和LiAlH4处理叠氮内酰胺合成的。
Enantioselective Total Synthesis of (+)‐Incargranine A Enabled by Bifunctional Iminophosphorane and Iridium Catalysis
作者:Anna A. M. Miller、Phillip Biallas、Benjamin D. A. Shennan、Darren J. Dixon
DOI:10.1002/anie.202314308
日期:2024.1.8
The first enantioselective total synthesis of (+)-incargranine A has been completed in nine steps. An enantioselective, organocatalysed dienone desymmetrising Michael addition and an iridium-catalysed reductive cyclisation were developed to access a key hemiaminal intermediate that was used to initiate a biomimetic cascade towards the natural product.
(+)-incargranin A 的第一个对映选择性全合成已通过九步完成。开发了一种对映选择性有机催化二烯酮去对称迈克尔加成和铱催化还原环化来获得关键的半缩醛胺中间体,该中间体用于启动朝向天然产物的仿生级联。