Murexide reaction of caffeine with hydrogen peroxide and hydrochloric acid. II
作者:Matajiro Koyama、Hiroshi Kozuka
DOI:10.1002/jhet.5570270334
日期:1990.3
In continuation of the study on the murexide reaction of caffeine with 3% hydrogen peroxide/hydrochloric acid and then with ammonia giving a purple coloration, we investigated the oxidation reaction of caffeine with 6% hydrogen peroxide/hydrochloric acid to isolate ten reaction products, 3-hydroxy-4,6-dimethyloxazolo[4,5-d]pyrimidine-2,5,7(3H,4H,6H)-trione 1, 1,3-dimethylalloxan 2, murexoin 3, 1,3
在继续研究咖啡因与3%的过氧化氢/盐酸,然后氨水呈紫红色的灭鼠灵反应后,我们研究了咖啡因与6%的过氧化氢/盐酸的氧化反应,以分离出十种反应产物,3 -羟基-4,6- dimethyloxazolo [4,5- d ]嘧啶-2,5,7-(3 ħ,4 ħ,6 ħ) -三酮1,1,3- dimethylalloxan 2,murexoin 3,1,3, 7-三甲基-2,6,8-三氧代-9-羟基-1- ħ,3 ħ,7 ħ -黄嘌呤5,1,3,7-三甲基-2,6,8-三氧代-1- ħ,3 ħ, 7小时-黄嘌呤6,1,3,7-三甲基-2,6-二氧代-8-氯-1- ħ,3 ħ,7 ħ -黄嘌呤7,5-(1,3-二甲基-1,2,3,4- ,5,6-六氢-2,4,6-三氧嘧啶丁-5-基)-氨基亚甲基-1,3-二甲基-1,2,3,4,5,6-六氢-2,4,6-三氧嘧啶铵盐9,1,3- dimethylpalabanic酸10,1-甲基-2