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
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