Asymmetric Heck cyclization route to indolizidine and azaazulene alkaloids: synthesis of (+)-5-epiindolizidine 167B and indolizidine 223AB
Autor: | Gary A. Sulikowski, Mathew Tallant, Kurt Kiewel |
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Rok vydání: | 2001 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 42:6621-6623 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(01)01361-2 |
Popis: | Asymmetric intramolecular Heck cyclization of endocyclic enamides occurs at room temperature to give indoloizidine and azaazulene ring systems in up to 86% enantiomeric excess. A synthesis of (+)-epiindolizidine 167B and formal synthesis of 5 E ,9 Z -indolizidine 223AB is described. |
Databáze: | OpenAIRE |
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