Intermolecular 1,3-dipolar-cycloaddition reaction of azomethine ylides, generated through decarboxylation route, with (E)-3-arylidene-4- chromanones as dipolarophiles has been investigated. A new class of functionalized spirooxindoles with pyrrolidine and pyrrolizines framework has been synthesized with high regioselectivity. The structures were established by spectroscopic techniques as well as single crystal X-ray analysis.
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