Oxidative coupling polymerization of p-alkoxyphenols with Mn(acac)2-ethylenediamine catalysts
Soichiro Murakami, Yuuta Akutsu, Shigeki Habaue, Osamu Haba, Hideyuki Higashimura
DOI: 10.4236/ns.2010.28101   PDF    HTML     6,960 Downloads   14,056 Views   Citations


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%.

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Murakami, S. , Akutsu, Y. , Habaue, S. , Haba, O. and Higashimura, H. (2010) Oxidative coupling polymerization of p-alkoxyphenols with Mn(acac)2-ethylenediamine catalysts. Natural Science, 2, 803-808. doi: 10.4236/ns.2010.28101.

Conflicts of Interest

The authors declare no conflicts of interest.


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