Selective oxidation of m-phenoxytoluene to m-phenoxybenzaldehyde with methanol as an additive in acetic acid

被引:1
作者
Yin, GC [1 ]
Xi, ZW [1 ]
Cao, GY [1 ]
Fan, SH [1 ]
Hai, XD [1 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
关键词
acetic acid/methanol solvents; m-phenoxytoluene; m-phenoxybenzaldehyde; oxidation; cobalt bromide catalyst;
D O I
暂无
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
With addition of methanol in acetic acid solvent, m-phenoxytoluene could be oxidized to m-phenoxybenzaldehyde selectively by a cobalt bromide catalyst. Paratemters such as the ratio of Co/Br and the reaction time of m-phenoxytoluene oxidation as well as visible spectra of cobalt bromide in acetic acid/methanol solvents, were also investigated. Addition of methanol caused the oxidation of aldehydes to proceed more slowly than it did solely in acetic acid solvent. The decrease of cobaltous-multibromides in acetic acid/methanol solvents was responsible for the improvement in the selective oxidation of m-phenoxytoluene. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:277 / 281
页数:5
相关论文
共 10 条
[1]  
ADAMYAN VA, 1993, KINET CATAL+, V34, P573
[2]   HOMOGENEOUS CATALYTIC-OXIDATION OF SECONDARY ALCOHOLS TO KETONES BY MOLECULAR-OXYGEN UNDER MILD CONDITIONS [J].
BLACKBURN, TF ;
SCHWARTZ, J .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1977, (05) :157-158
[3]  
CAMERMAN PJA, 1972, Patent No. 1275699
[4]  
GUOYING C, 1983, CHINESE J CATAL, V3, P218
[5]   AUTOXIDATION REACTIONS CATALYZED BY COBALT ACETATE BROMIDE [J].
HAY, AS ;
BLANCHARD, HS .
CANADIAN JOURNAL OF CHEMISTRY-BACK YEAR, 1965, 43 (05) :1306-+
[6]  
HEIBA EI, 1969, J AM CHEM SOC, V91, P6831
[7]   HOMOLYTIC AND IONIC MECHANISMS IN LIGAND-TRANSFER OXIDATION OF ALKYL RADICALS BY COPPER(II) HALIDES AND PSEUDOHALIDES [J].
JENKINS, CL ;
KOCHI, JK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1972, 94 (03) :856-&
[8]  
KAMAYA Y, 1974, J CATAL, V33, P480
[9]   KINETICS OF AUTOXIDATION OF TOLUENES CATALYSED BY COBALTIC ACETATE .2. EFFECTS OF BENZALDEHYDE COBALT AND SUBSTITUENT [J].
MORIMOTO, T ;
OGATA, Y .
JOURNAL OF THE CHEMICAL SOCIETY B-PHYSICAL ORGANIC, 1967, (12) :1353-&
[10]  
VERBRUGGE PA, 1978, Patent No. 2804115