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1. 1,3-Dipolar cycloaddition for selective synthesis of functionalized spiro[indoline-3,3′-pyrrolizines]

Author

Zhu, Meijun, Han, Ying, Liu, Changzhou, Ma, Weiqing, and Yan, Chao-Guo

Abstract

The 1,3-dipolar cycloaddition reaction of dimethyl hex-2-en-4-ynedioate with in situgenerated azomethine ylides derived from reaction of l-proline and isatins in methanol resulted in functionalized tetrahydrospiro[indoline-3,3′-pyrrolizine]-acrylates as main products and hexahydrospiro[indoline-3,3′-pyrrolizine]propiolates as minor products.

Published
2020
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