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Etori, H., Kanbara, T. and Yamamoto, T. (1994) New type of―conjugated polymers constituted of quinone units in the main chain. Chemistry Letters, 23(3), 461 464.

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• TITLE: Oxidative coupling polymerization of p-alkoxyphenols with Mn(acac)2-ethylenediamine catalysts

  AUTHORS: Soichiro Murakami, Yuuta Akutsu, Shigeki Habaue, Osamu Haba, Hideyuki Higashimura

  KEYWORDS: Oxidative Coupling Polymerization; Phenol; Polyphenylene; Manganese Catalyst; Regioselectivity

  JOURNAL NAME: Natural Science, Vol.2 No.8, August 25, 2010

  ABSTRACT: The oxidative coupling polymerization of p alkoxyphenols with Mn(acac)2ethylenediamine catalysts was carried out. The polymerization of pmethoxyphenol with the manganese(II) acetylacetonate [Mn(acac)2]N,N’diethylethylene diamine catalyst in CH2Cl2 at room temperature under an O2 atmosphere afforded a polymer, which mainly consists of the mphenylene unit, whereas the polymer obtained with Mn(acac)2 was rich in the oxyphenylene structure. The polymer yield and regioselectivity were significantly affected by the monomer and catalyst structures. The former catalyst system was also used for the coupling reaction of 2methoxy 4methylphenol. The corresponding carboncar bon coupling product was isolated with a regioselectivity of 95%.