偕二茂铁取代水杨醛亚胺配合物对异丁香酚的氧化。

Oxidation of isoeugenol by salen complexes with bulky substituents.

机构信息

Dipartimento di Scienze dell'Ambiente e del Territorio, Università degli Studi di Milano-Bicocca, Italy.

出版信息

Int J Mol Sci. 2010 Mar 4;11(3):912-26. doi: 10.3390/ijms11030912.

DOI:10.3390/ijms11030912

PMID:20479991

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2869228/

Abstract

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, (13)C-NMR, (31)P-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.

摘要

已在水-乙醇溶液中研究了大体积水溶性席夫碱配合物在氧化异丁香酚（2-甲氧基-4-（1-丙烯基）苯酚）中的催化性能，以便通过脱氢聚合获得聚合物混合物。通过凝胶渗透色谱法（GPC）监测脱氢聚合物（DHPs）的平均分子量，并将其与反应条件（如时间、底物浓度、催化剂浓度、氧化剂类型等）相关联。通过采用最佳反应条件合成的 DHP 通过不同的分析技术（GPC、（13）C-NMR、（31）P-NMR 和 LC-MS）进行表征，以阐明其结构。异丁香酚自由基偶联生成的木质素样聚合物具有有价值的生物活性，并在包装工业和文化遗产保护等多个领域得到应用。