Synthesis and photophysical properties of benzo[c]thiophene, p-phenylene-, triphenylamine-, and pyrene-based vinylenes. Issue 22 (16th November 2016) - Nandakumar, Meganathan
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 characteristics of the synthesized vinylenes were also reported. GRAPHICAL ABSTRACT: