The radical rate-determining step in the oxidation of benzyl alcohols by two N-OH-type mediators of laccase:: the polar N-oxyl radical intermediate

被引:45
作者
d'Acunzo, F
Baiocco, P
Fabbrini, M
Galli, C [1 ]
Gentili, P
机构
[1] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy
[2] Univ Roma La Sapienza, Ctr CNR Meccanismi Reaz, I-00185 Rome, Italy
关键词
D O I
10.1039/b206928h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Determination of the effect of substituents in the aerobic oxidation of X-substituted benzyl alcohols by laccase, with mediation by HPI or HBT, confirms the H-atom abstraction from the benzylic C H bond as the rate-determining step ( HAT route), and supports a polar nature for the N-oxyl radical intermediate originating from the two N-OH mediators.
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页码:1791 / 1794
页数:4
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