A New Access to Dispiro 7-Oxaindazolidines Spiroxindole Derivatives

Rathna Durga R. S. Manian Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, India

Jayadevan Jayashankaran Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, India

Raghavachary Raghunathan Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, IndiaCorrespondence[email protected]

Abstract

Synthesis of dispiro 7-oxaindazolidines has been accomplished by regioselective 1,3-dipoiar cycloaddition reaction of azomethine ylide generated from secondary amine, morpholine, and isatin (via deprotonation route) with arylidene chromanones and arylidene tetralones as dipolarophiles.

Acknowledgment

RR thanks Santhanaraman Manikandan for his valuable suggestion and UGC for financial support.

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A New Access to Dispiro 7-Oxaindazolidines Spiroxindole Derivatives

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A New Access to Dispiro 7-Oxaindazolidines Spiroxindole Derivatives

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