3-Arylidene-4-flavanones Acting as 2π Components in an Intermolecular 1,3-Dipolar Cycloaddition Reaction of Azomethine Ylides

Abstract

The 1,3-dipolar cycloaddition reaction of 3-arylidene-4-flavanone derivatives with azomethine ylides generated by various routes have been investigated. The structure and stereochemistry of the cycloadduct have been established by single crystal X-ray structure and spectroscopic techniques.

Key words

cycloadditions - azomethine ylides - spiro compounds

References

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22

Crystallographic data for the structural analysis have been deposited at the Cambridge Crystallographic data Centre, CCDC No. 190901 for compund 5g. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge, CB2 1FZ. UK (fax:[phone]; e-mail: [e-mail] or http://www.ccdc.cam.ac.uk).