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Updated: Jun 27, 2026

Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
Densely functionalized chiral pyrroles from endocyclic, exocyclic, and acyclic vinyl sulfone-modified carbohydrates
Rahul Bhattacharya1, Ananta Kumar Atta, Debanjana Dey
1Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India.
Abstract:
A wide range of vinyl sulfone-modified carbohydrates have been prepared as starting materials for the synthesis of polysubstituted chiral pyrroles. All these vinyl sulfones reacted efficiently with ethylisocyanoacetate to generate a plethora of new pyrrole derivatives. Furanosyl rings opened up during pyrrole synthesis, and pyranosyl rings were opened up by reacting the pyrrole with POCl(3)/DMF. This paper also reports one of the most efficient and practical routes for the synthesis of beta-substituted pyrroles.
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