作者:Bruce, Veera K.、Farshadfar, Kaveh、Rolig, Aino、Laasonen, Kari、Pihko, Petri M.
DOI:10.1002/chem.202402371
日期:——
A simple catalyst for the ketone Claisen rearrangement. By optimizing the benzoic acid catalysts for the Claisen rearrangement sequence that starts with allylic alcohols and enol ethers or ketone acetals, 4-chlorobenzoic acid catalyst emerged as a catalyst that retains its activity in the process. This catalyst enables ketone Claisen reactions with even acid- and heat-sensitive protecting groups, such
酮克莱森重排的简单催化剂。通过优化从烯丙醇和烯醇醚或酮缩醛开始的克莱森重排序列的苯甲酸催化剂,4-氯苯甲酸催化剂成为在该过程中保留其活性的催化剂。该催化剂甚至可以使酮与酸和热敏感的保护基团发生克莱森反应,例如叔丁氧基羰基胺 (BocNH) 或叔丁基二甲基甲硅烷基 (TBDMS) 醚。