Cascade annulation reaction (CAR): highly diastereoselective synthesis of pyranopyrazole scaffolds
作者:Manickam Bakthadoss、Manickam Surendar
DOI:10.1039/d0ra03400b
日期:——
An unprecedented domino protocol for the novel synthesis of highly diverse and functionalized tetrahydro pyranopyrazole scaffolds using chalcone epoxide has been reported for the first time. This synthetic protocol generates three consecutive stereogenic centres in a highlydiastereoselective manner with the formation of vicinal diol and a quaternary carbon centre. A wide range of substrates were utilized