Title of article :
A Novel and Efficient Approach to (Z)-1,2-Bis(benzodithienyl)ethene Precursors of Tetrathia[7]helicenes
Author/Authors :
Baldoli، Clara نويسنده , , Bossi، Alberto نويسنده , , Giannini، Clelia نويسنده , , Licandro، Emanuela نويسنده , , Maiorana، Stefano نويسنده , , Perdicchia، Dario نويسنده , , Schiavo، Michele نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
A new and efficient method for the ‘one-step’ synthesis of (Z)-1,2bis(benzodithienyl)ethenes has been set up using double Suzuki coupling between stereochemically defined diboronic acid esters and 2-iodobenzodithiophene. The new Z-alkenes thus obtained can be easily and efficiently photochemically cyclised to the newly substituted tetrathia[7]helicenes.
Keywords :
fused ring systems , (Z)-1,2-bis(benzodithiophenyl)ethenes , thiahelicenes , Helical structures , Coupling
