Synthesis of dihydroindolizines for potential photoinduced work function alteration
作者:Matthew A. Bartucci、Patrycja M. Wierzbicki、Chengeto Gwengo、Sunny Shajan、Syed H. Hussain、Jacob W. Ciszek
DOI:10.1016/j.tetlet.2010.10.097
日期:2010.12
Seeking to immobilize photochromophores on metallic surfaces, we have synthesized four molecules which contain both a photoresponsive dihydroindolizine (DHI) core and a sulfur containing moiety, which allow for their assembly onto gold substrates. Sonogashira, Suzuki, or Ullmann couplings are employed to generate pyridines with pendant thioacetates (or disulfides). The pyridines are condensed with spiro[2-cyclopropene-1,9'[9H]fluorene]-2,3-dimethyl ester affording the targeted DHIs. (C) 2010 Elsevier Ltd. All rights reserved.