Three convergent routes to thiophenes are described, hinging on the radical addition of alpha-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61-94%).
Three convergent routes to thiophenes are described, hinging on the radical addition of alpha-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61-94%).
Radical Additions of Xanthates to Vinyl Epoxides and Related Derivatives: A Powerful Tool for the Modular Creation of Quaternary Centers
作者:Nicolas Charrier、David Gravestock、Samir Z. Zard
DOI:10.1002/anie.200601567
日期:2006.10.6
Flexible Routes to Thiophenes
作者:Hélène Jullien、Béatrice Quiclet-Sire、Thomas Tétart、Samir Z. Zard
DOI:10.1021/ol403310f
日期:2014.1.3
Three convergent routes to thiophenes are described, hinging on the radical addition of alpha-xanthyl ketones to ethyl vinyl sulfide or to vinyl pivalate. The latter route ultimately proved to be the most versatile and efficient (61-94%).