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Type: Artigo de periódico
Title: Heck arylation of endocyclic enecarbamates with diazonium salts. Improvements and a concise enantioselective synthesis of (-)-codonopsinine
Author: Severino, EA
Correia, CRD
Abstract: [GRAPHICS] Total enantioselective synthesis of the natural (-)-codonopsinine was accomplished in seven steps with an overall yield of similar to 16% starting from the five-membered endocyclic enecarbamate 4. The total synthesis features a highly efficient and stereoselective Heck arylation of endocyclic enecarbamate 4 with p-methoxybenzenediazonium tetrafluoroborate and a stereoselective epoxidation/epoxide opening sequence as key steps.
Country: EUA
Editor: Amer Chemical Soc
Citation: Organic Letters. Amer Chemical Soc, v. 2, n. 20, n. 3039, n. 3042, 2000.
Rights: fechado
Identifier DOI: 10.1021/ol005762d
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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