1,3-Dipolar Cycloaddition−Decarboxylation Reactions of an Azomethine Ylide with Isatoic Anhydrides: Formation of Novel Benzodiazepinones
作者:Nadia Spiccia、Jose Basutto、Pawel Jokisz、Leon S.-M. Wong、Adam G. Meyer、Andrew B. Holmes、Jonathan M. White、John H. Ryan
DOI:10.1021/ol102824k
日期:2011.2.4
substituted isatoicanhydrides to afford novel 1,3-benzodiazepin-5-one derivatives, which are generally isolated in high yield. The transformations involve 1,3-dipolar cycloaddition reactions of the ylide with the anhydrides to give transient, and in a representative case spectroscopically observable, oxazolidine intermediates that undergo ring-opening−decarboxylation−ring-closing reaction cascades to