Convenient Access to 2,3‐Disubstituted‐cyclobut‐2‐en‐1‐ones under Suzuki Conditions and Their Synthetic Utility
作者:Benito Alcaide、Pedro Almendros、Carlos Lázaro‐Milla
DOI:10.1002/chem.201900690
日期:2019.6.4
A regioselective synthesis of general applicability has been designed for the one‐pot preparation of 2,3‐disubstituted‐cyclobutenones from iodoalkynes through cyclobutenylation, Suzuki CC coupling, and ketone formation. This one‐pot methodology has been applied to the selective synthesis of an orally active cyclooxygenase II inhibitor. Furthermore, the obtained cyclobut‐2‐en‐1‐ones were used as synthons
已设计了一种通用的区域选择性合成方法,用于通过碘化炔烃,通过环丁烯基化,Suzuki CC偶联和酮形成,一锅制备2,3-二取代-环丁烯酮。这种单罐方法已应用于选择性合成口服活性环氧合酶II抑制剂。此外,将获得的环丁-2-烯-1-酮用作合成子,进行了多次转化,例如制备β-内酰胺,酞嗪,环己-2,5-二烯-1-酮和环戊-3-烯。一对一。