UNUSUAL SELECTIVITY IN PHOTOOXYGENATION OF ALKANES BY AIR IN CH3CN SOLUTIONS CATALYZED BY CRCL3-C6H5CH2N(C2H5)3CL

被引：8

作者：

NIZOVA, GV ^{[1
]}

LOSENKOVA, GV ^{[1
]}

SHULPIN, GB ^{[1
]}

机构：

[1] CHEM PHYS INST,MOSCOW 117977,USSR

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1991年 / 45卷 / 01期

关键词：

D O I：

10.1007/BF02078604

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new system Cr Cl3-C6H5CH2N(C2H5)3Cl-CH3CN for photooxygenation of alkanes is suggested. Unlike metal chlorides and oxocomplexes, it oxidizes alkanes to produce ketones and small amounts of alcohol. Adding of benzene, methylene chloride or ethanol to the cyclohexane solution rises the oxygenation rate and changes the ketone/alcohol ratio. With small amounts of hydroquinone the formation rate of cyclohexanone (but not of cyclohexanol) sharply decreases. Kinetic isotope effect in the oxidation of C6H12 and C6D12 is approximately 1 for cyclohexanol and approximately 2.9 for cyclohexanone. Cyclohexanol formation is assumed to follow a mechanism that does not involve free radicals. Free radicals can participate in the route toward ketone.

引用

页码：27 / 34

页数：8

共 11 条

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