Synthesis of poly(para-phenylene)(2-isocyano-2-tosylpropane-1,3-diyl), poly(para-phenylene)(2-oxopropane-1,3-diyl) and oligo(cyclopentadienones) via carbonylative coupling of α,α′-dibromoxylene†
Abstract
Poly(para-phenylene)(2-oxopropane-1,3-diyl), a potential precursor of linear