| abstract |
A compound having one of the following formulas (11) and (12), wherein X is an aromatic nucleophilic substitution leaving group; R 1 is hydrogen, an alkyl group or an aryl group; Q 1 is Compounds that are carboxyl protecting groups or aldehyde protecting groups are disclosed. Also disclosed are fused thiophenes that can be prepared using these compounds, and stannylthio-containing thiophene, thienothiophene, and disienothiophene compounds that can be used to prepare the fused thiophenes. Also disclosed are methods of making and using the above-described compounds, fused thiophenes, and stannylthio-containing thiophene, thienothiophene, and dithienothiophene compounds. |