SYNTHESIS OF 3,3'-BIS(ALKYLSULFANYL)-2,2'-BITHIOPHENES AND 4,4'-BIS(ALKYLSULFANYL)-2,2'-BITHIOPHENES FROM THE CORRESPONDING DIBROMO DERIVATIVES THROUGH LITHIATION
U. Folli et al., SYNTHESIS OF 3,3'-BIS(ALKYLSULFANYL)-2,2'-BITHIOPHENES AND 4,4'-BIS(ALKYLSULFANYL)-2,2'-BITHIOPHENES FROM THE CORRESPONDING DIBROMO DERIVATIVES THROUGH LITHIATION, Journal of chemical research. Synopses, (2), 1996, pp. 69
Both 3,3'- and 4,4'-dibromo-2,2'-bithiophenes, through bromine-lithium
exchange with butyllithium followed by reaction with a dialkyl disulf
ide (Me(2)S(2) or Bu(2)S(2)), have been converted into the correspondi
ng bis(alkylsulfanyl) derivatives.