Synthesis of conjugated f-polyenes containing thienyl ring systems

摘要

Novel 1-substituted F-1,3-butadienes ThioAr-CF=CFCF=CF_2, ThioAr=2-thienyl and 2-benzo- [b]thienyl, and symmetrically 1,4-disubstituted F-1,3butadienes ThioAr-CF=CFCF=CF=ThioAr, ThioAr=5-R'-2-thienyl(R'=Me, SiMe_3, CF=CFCI), 3-thienyl, and 4-dibenzo[b,d]thienyl, inclusive Of the above-named substituents, were prepared by the reaction of organolithium derivatives with F-1,3-butadiene (PFBD).