Stereoselective preparation of conjugated E-enynes from E-vinylic tellurides and terminal alkynes via Sonogashira cross-coupling

Autor: Gilson, Zeni, Diego, Alves, Jesus M, Pena, Antonio L, Braga, Helio A, Stefani, Cristina W, Nogueira
Rok vydání: 2004
Zdroj: Organicbiomolecular chemistry. 2(6)
ISSN: 1477-0520
Popis: E-Vinylic tellurides undergo a direct cross-coupling reaction with terminal alkynes in the presence of palladium(II)/CuI in Et(3)N at room temperature to give E-enynes in good yields. The methodology represents a general and efficient protocol for carrying out the synthesis of E-enynes under mild conditions with complete retention of configuration.
Databáze: OpenAIRE