Enzymatic catalysis of 2,6-dimethoxyphenol by laccases and products characterization in organic solutions

被引：0
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作者：
YunYang Wan
YuMin Du
Tetsuo Miyakoshi
机构：
[1] China University of Petroleum,State Key Laboratory of Petroleum Resources and Prospecting, Faculty of Natural Resources and Information Technology
[2] Meiji University,Department of Industrial Chemistry
[3] Wuhan University,School of Resource and Environment Science
来源：
Science in China Series B: Chemistry | 2008年 / 51卷
关键词：
laccase; laccase-catalyzed oxidation; organic solvent; 2,6-dimethoxyphenol; COLOC;
D O I：
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摘要：
2,6-Dimethoxyphenol (DMP) as a substrate was widely used in determination of laccase activity. It is surprising, however, that its catalyzed oxidation products have not been completely determined until now. Studies were thus conducted on Rhus laccase (RL) and immobilized Rhus laccase (IRL)-catalyzed oxidation reactions of 2,6-dimethoxyphenol in water-organic solvent systems. These reactions proceeded well in water-(im)miscible organic solvent systems pre-saturated with water. Only one product, 3,3′,5,5′-tetramethoxy-1,1′biphenyl-4,4′-diol (TMBP), was produced by RL catalysis, and it was thoroughly characterized by FT-IR, NMR, GC-MS, etc. A simple enzymatic mechanism of this reaction is propos
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页码：669 / 676
页数：7
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