Oxidation of Isoeugenol by Salen Complexes with Bulky Substituents

Autor: Anika Salanti, Marco Orlandi, Eeva-Liisa Tolppa, Luca Zoia
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: International Journal of Molecular Sciences, Vol 11, Iss 3, Pp 912-926 (2010)
Druh dokumentu: article
ISSN: 1422-0067
DOI: 10.3390/ijms11030912
Popis: The catalytic properties of bulky water-soluble salen complexes in the oxidation of isoeugenol(2-methoxy-4-(1-propenyl) phenol) have been investigated in aqueous ethanol solutions in order to obtain a mixture of polymeric compounds through dehydrogenative polymerization. The average molecular weight of dehydrogenated polymers (DHPs) was monitored by GPC and correlated to reaction conditions such as time, concentration of substrate, concentration of catalyst, type of oxidation agent, etc. The DHP synthesized by adopting the best reaction conditions was characterized by different analytical techniques (GPC, 13C-NMR, 31P-NMR and LC-MS) to elucidate its structure. The lignin-like polymer resulting from isoeugenol radical coupling possesses valuable biological activity and finds applications in a variety of fields, such as packaging industry and cultural heritage conservation.
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