A General Catalytic Route to Enantioenriched Isoindolinones and Phthalides: Application in the Synthesis of (<i>S</i>)-PD 172938
作者:Sumit K. Ray、Milon M. Sadhu、Rayhan G. Biswas、Rajshekhar A. Unhale、Vinod K. Singh
DOI:10.1021/acs.orglett.8b03597
日期:2019.1.18
have been accomplished via tandem Mannich-lactamization and aldol-lactonization reactions, respectively. A variety of enantioenriched isoindolinones (up to 99% ee) and phthalides (up to 85% ee) containing α-diazoesters were afforded in excellent yields. Furthermore, a concise synthesis of (S)-PD 172938 has been demonstrated by using this protocol.