Photochromism of dihydroindolizines. Part 12: synthesis and photochromism of novel π-conjugated rigid dihydroindolizines as potential molecular electronic devices
作者:Saleh Abdel-Mgeed Ahmed
DOI:10.1016/j.tet.2008.12.047
日期:2009.2
Novel carbon-rich photochromic dihydroindolizine DHI derivatives and new spirocyclopropenes have been synthesized. Three alternative synthetic pathways for the synthesis of DHI 10 have been established. Different Sonogashira-mediated coupling reactions have been applied to optimize the reaction conditions and to obtain the best yields. Palladium-mediated Sonogashira coupling of DHIs with 4-(thioacetyl)iodobenzene