Kinetics of oxidation of acidic amino acids and their monoamides byN-chloroarylsulphonamides in aqueous acidic medium
作者:B. Thimme Gowda、Mahesha Shetty
DOI:10.1002/poc.758
日期:2004.10
Twelve sodium salts of N-chloroarylsulphonamides were employed as oxidants for studying the kinetics of oxidation of two acidic amino acids (aspartic and glutamic acid) and their monoamides (aspargine and glutamine) in aqueous acidic medium under various conditions, to see how the oxidative strength of these reagents vary with substitution. The sodium salts of N-chloroarylsulphonamides employed are
使用N-氯芳基磺酰胺的十二种钠盐作为氧化剂,研究了两种酸性氨基酸(天冬氨酸和谷氨酸)及其单酰胺(天冬氨酸和谷氨酰胺)在水性酸性介质中在各种条件下的氧化动力学,以了解其氧化强度这些试剂的种类随取代而变化。的钠盐Ñ -chloroarylsulphonamides采用是通式我-XC 6 ħ 4 SO 2 NaNCl· X ^ h 2 O(其中,我-X = 4-C 2 H ^ 5,4-F,4-Cl或4- Br)和i -X- j -YC6 ħ 3 SO 2 NaNCl· X ^ h 2 -O [其中我-X- Ĵ -Y = 2,3-(CH 3)2,2,4-(CH 3)2,2,5-(CH 3)2,2-CH 3 -4-Cl,2,4-Cl 2和3,4-Cl 2 ]。反应在[氧化剂]中显示出二级动力学,在[氨基酸]中显示出分数级,并且对[H +]。添加氧化剂的还原产物或介质的离子强度的变化对氧化速率没有显着