Kinetics and mechanism of Ru(VIII) catalyzed oxidation of L(-)-sorbose and maltose by sodium metaperiodate in alkaline medium

被引:0
作者
Gupta, N [1 ]
Rahmani, S [1 ]
Singh, AK [1 ]
机构
[1] Univ Allahabad, Dept Chem, Allahabad 211002, Uttar Pradesh, India
来源
OXIDATION COMMUNICATIONS | 1999年 / 22卷 / 02期
关键词
kinetics and mechanism; sorbose; maltose; alkaline oxidation; sodium metaperiodate; Ru(VIII);
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The kinetics and mechanism of Ru(VIII) catalyzed oxidation of L(-) sorbose and maltose by alkaline solution of sodium metaperiodate in the temperature range of 35 - 50 degrees C have been reported. The experimental results show first order kinetics with respect to [NaIO4], [Ru(VIII)] and [OH-] at their lower concentration. The reaction follows identical kinetics, being zero order in each substrate, i.e. L(-) sorbose and maltose. Variation of ionic strength of the medium shows negligible effect. A suitable mechanism in favour of the above observed kinetics has been proposed and various activation parameters have been calculated, which support the proposed mechanism.
引用
收藏
页码:237 / 243
页数:7
相关论文
共 17 条
[1]   MECHANISM OF OXIDATION OF ALPHA-GLYCOLS BY PERIODIC ACID .10. OXIDATION OF PINACOL, AND A GENERAL DISCUSSION OF STABILITY OF PERIODATE ESTERS AND THEIR ROLE IN MECHANISM OF OXIDATION [J].
BUIST, GJ ;
BUNTON, CA ;
HIPPERSON, WC .
JOURNAL OF THE CHEMICAL SOCIETY B-PHYSICAL ORGANIC, 1971, (11) :2128-+
[2]  
DAHLGREN G, 1967, J AM CHEM SOC, V71, P1380
[4]   The mechanism of carbohydrate oxidation [J].
Evans, WL .
CHEMICAL REVIEWS, 1929, 6 (03) :281-315
[5]  
HEF JV, 1907, LIEBIGS ANN CHEM, V357, P214
[6]  
HEF JV, 1914, LIEBIGS ANN CHEM, V403, P204
[7]   MECHANISM OF THE PERIODATE-OXIDATION OF ETHANE-1,2-DIAMINE, NN'-DIMETHYLETHANE-1,2-DIAMINE, AND 2-AMINOETHANOL [J].
MAROS, L ;
MOLNARPERL, I ;
SCHISSEL, E ;
SZERDAHELYI, V .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1980, (01) :39-45
[8]  
PADAMJA S, 1995, INDIAN J CHEM A, V34, P351
[9]  
PASCUAL R, 1980, CAN J CHEM, V67, P634
[10]   UV-SPEKTROSKOPISCHE UNTERSUCHUNGEN AN ZUCKERN .1. DIE EINWIRKUNG VON NATRIUMHYDROXYD AUF GLUCOSE - DER NACHWEIS DER ENDIOLATFORM DER GLUCOSE [J].
PETUELY, F ;
MEIXNER, N .
CHEMISCHE BERICHTE-RECUEIL, 1953, 86 (10) :1255-1263