Synthesis and photophysical properties of benzo[<i>c</i>]thiophene, <i>p</i>-phenylene-, triphenylamine-, and pyrene-based vinylenes
作者:Meganathan Nandakumar、Elumalai Sankar、Arasambattu K. Mohanakrishnan
DOI:10.1080/00397911.2016.1228111
日期:2016.11.16
ABSTRACT An efficient synthesis of benzo[c]thiophenyl/p-phenylenyl/pyrenyl phosphonate esters has been achieved using ZnBr2-catalyzed Michaelis–Arbuzov reaction of corresponding benzyl alcohol/bromides at room temperature. Horner–Wadsworth–Emmons reaction of the phosphonate esters with aryl/heteroaryl aldehydes in the presence of t-BuOK furnished the vinylenes in good yields. The absorption and emission