Orthogonal Synthesis of Indolines and Isoquinolines via Aryne Annulation
作者:Christopher D. Gilmore、Kevin M. Allan、Brian M. Stoltz
DOI:10.1021/ja0780582
日期:2008.2.6
exploiting the reactivity of arynes. Reaction of N-carbamoyl-functionalized enamine derivatives with benzyne affords substituted indolines. An orthogonal reactivity is uncovered when related enamine derivatives are modified as amides, such that isoquinolines are formed as the product of condensation with benzyne. This latter transformation is applied to a concise total synthesis of the opiate alkaloid papaverine