121846-84-2
5,5'-bis(3,5-di-tert-butyl-4-(silyloxy)phenyl)-2,2'-bithiophene
→
121846-77-3
5,5'-bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-5,5'-dihydro-2,2'-bithiophene