Hydroperoxide oxidation: unexpected C-C bond cleavage in branched alkanes and oxidation of molecular nitrogen

被引:6
|
作者
Gekhman, AE
Stolyarov, IP
Moiseeva, NI
Moiseev, II [1 ]
机构
[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
[2] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia
关键词
oxidation; hydroxylation; ketonization; C-C bond cleavage; linear alkanes; branched alkanes; cyclohexane; molecular nitrogen; hydrogen peroxide; vanadium(V);
D O I
10.1016/j.crci.2004.06.001
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cyclohexane and C-5-C-20 n-alkanes undergo oxidation, giving rise to ketones and alcohols in the V-(V)/H2O2/AcOH system. The products of oxidation of branched alkanes are indicative of the C-C bond cleavage in these substrates. A number of short-chain ketones, alcohols (and their acetates) were found among the products of isooctane oxidation. A concept is developed, according to which the active oxidant is a vanadium(V) complex containing the coordinated O-3(2-) ligand. The transfer of O atom from the complex to a substrate gives rise to the hydroxylation products. The transfer of O+. radical cation from the coordinated O-3(2-) ligand is assumed to be responsible for the ketonization or/and C-C bond cleavage. (C) 2004 Academie des sciences. Published by Elsevier SAS. All rights reserved.
引用
收藏
页码:833 / 844
页数:12
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