Synthesis of Multi-Substituted Pyrroles by Lewis Acid Promoted Cyclization Of N-Sulfonyl Vinylogous Carbamates and Amides
SSRN, ISSN: 1556-5068
2023
- 1Citations
- 296Usage
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Article Description
A three-step sequence to construct pyrroles from three components including 2,2-dimethoxyethylamine, aryl/alkyl sulfonyl chlorides and alkynes bearing electron-withdrawing groups is presented. The pyrroles are proposed to arise via a 5-exo-trig cyclization proceeding through both oxocarbenium and N-sulfonyliminium ions. This modular route allows for the variability at the N-sulfonyl group, the C2 and C3 substituents for rational vectoring of the pyrrole nucleus for downstream processes.
Bibliographic Details
Elsevier BV
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