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ChemInform Abstract: Diastereoselective Synthesis of Bisspiroconjugated Oxindoles by [3 + 2] Dipolar Cycloaddition.

✍ Scribed by A. A. Shvets; S. V. Kurbatov

Publisher: John Wiley and Sons
Year: 2010
Weight: 24 KB
Volume: 41
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201015111

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## Abstract magnified image The 1,3‐dipolar cycloaddition of an azomethine ylide generated by a decarboxylative route from sarcosine and isatin to 2,5‐bis(arylmethylidene)‐cyclopentanones afforded novel dispiro oxindole/pyrrolidines in moderate yields. Further cycloaddition of these dispiro oxindol