Nonstoichiometric polycondensation based on Friedel–Crafts acylation in superacids for the syntheses of aromatic polyketones
Literature Information
Kazuya Matsumoto, Takayuki Ogawa, Mitsutoshi Jikei
Based on Friedel–Crafts acylation, nonstoichiometric polycondensation was achieved using 4,4′-dicarboxydiphenyl ether and 2,2′-dimethoxybiphenyl in trifluoromethanesulfonic acid. The decrease in the acylation reactivity of 2,2′-dimethoxybiphenyl by protonation and the increase in the acylation reactivity of the monoacylated species by deprotonation play a key role in successful nonstoichiometric polycondensations.
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