Reaction of Isocyanides, Dialkyl Acetylenedicarboxylates, and α-Keto Lactones: Unexpected Participation of an Ester Carbonyl Group in the Isocyanide-Based Three-Component Reaction
作者:Abbas Esmaeili、Hamid Vesalipoor
DOI:10.1055/s-0028-1088042
日期:2009.5
The reaction of benzofuran-2,3-dione derivatives with dialkyl acetylenedicarboxylates and alkyl isocyanides results in a three-component addition reaction in which the ester carbonyl group is incorporated into a two-atom assembling unit to give highly functionalized γ-spiroiminolactones in good yield. This reaction provides the first example of an ester carbonyl group participating in an isocyanide-based