Bergman Cyclization of Fluorinated Benzo-Fused Enediynes to Naphthalene Derivatives: Syntheses and Structures
作者:Christopher M. Kane、Tiffany B. Meyers、Xin Yu、Michael Gerken、Markus Etzkorn
DOI:10.1002/ejoc.201001747
日期:2011.6
Fluorinated naphthalene derivatives were prepared by Bergman cyclization of fluorinated benzo-fused enediynes. This route provides access to the aromatic target compounds in a two-step procedure from commercially available precursors, via a Sonogashira cross-coupling and a subsequent, thermally initiated Bergman cyclization. Crystal structures of six fluorinated benzo-enediynes and three fluorinated
氟化萘衍生物通过氟化苯并稠合烯二炔的伯格曼环化反应制备。该路线通过 Sonogashira 交叉偶联和随后的热引发 Bergman 环化,通过两步程序从市售前体中获得芳族目标化合物。六种氟化苯并烯二炔和三种氟化萘衍生物的晶体结构在其分子结构和晶体堆积排列方面表现出显着的多样性。从二-四氟苯并-烯二炔的相当微妙的结构变化,以及末端乙炔亚基的变化导致固态下不同的非共价相互作用,最终决定了它们的晶体结构。