β″-di-R-substituted fused thiophene (DCXFT4) compounds, and a method for making a compound of the formula (V):
where each R is a C
4
to C
25
hydrocarbylene, the method including di-acylating tetra-bromo dithiophene (I); contacting the bromo-dithiophene compound (II) with a 2-mercaptoacetate to form cyclized fused thiophene (III); converting fused thiophene (III) to the corresponding diacid (IV); and decarboxylating the diacid (IV) to the fused thiophene (V), of the formulas as defined herein.
β″-di-R-substituted fused thiophene (DCXFT4) compounds, and a method for making a compound of the formula (V):
where each R is a C4 to C25 hydrocarbylene, the method including di-acylating tetra-bromo dithiophene (I); contacting the bromo-dithiophene compound (II) with a 2-mercaptoacetate to form cyclized fused thiophene (III); converting fused thiophene (III) to the corresponding diacid (IV); and decarboxylating the diacid (IV) to the fused thiophene (V), of the formulas as defined herein.
[EN] METHODS OF MAKING FUSED THIOPHENES<br/>[FR] PROCÉDÉS DE PRÉPARATION DE THIOPHÈNES CONDENSÉS
申请人:CORNING INC
公开号:WO2011146308A1
公开(公告)日:2011-11-24
β''-di-R-substituted fused thiophene (DCXFT4) compounds, and a method for making a compound of the formula (V) where each R is a C4 to C25 hydrocarbylene, the method including di-acylating tetra-bromo dithiophene (I); contacting the bromo-dithiophene compound (II) with a 2-mercaptoacetate to form cyclized fused thiophene (III); converting fused thiophene (III) to the corresponding diacid (IV); and decarboxylating the diacid (IV) to the fused thiophene (V), of the formulas as defined herein.