Synthesis of a Novel Dispiroheterocyclic Framework via the Regioselective 1,3-Dipolar Cycloaddition Reaction of Azomethine Ylides

摘要

2-Arylidene-1,3-indanediones undergo regioselective 1,3-dipolar cyclo-addition with the azomethine ylide generated from acenaphthenequinone and sarcosine to afford a rare class of complex dispiropyrrolidines in good yield.Single-crystal X-ray crystal analysis of one of the products confirms the structure and regio-chemistry of the cycloaddition.