作者:Peter Fyhr、Arne Brodin、Lennart Ernerot、Jörgen Lindquist
DOI:10.1002/jps.2600750618
日期:1986.6
presence of cyanide ion. The degradation rate increased with increasing pH values between pH 1 and 3.2 and with increasing concentrations between 1 and 50% w/v pralidoxime chloride. The results suggest that 1 (X- = Cl-) is dehydrated by a hydroxyl-ion catalyzed reaction ot the nitrile 2 which is hydrolyzed to either the pyridone 6 and cyanide ion or to 2-carboxamido-1-methyl-pyridinium chloride 3. The amide
使用一种或多种方法鉴定HPLC(1)(X- = Cl-)在浓水溶液(小于或等于50%w / v)中的降解产物:HPLC,极谱法,伏安法,MS和/或核磁共振。发现的产物是2-氰基,2-羧酰胺基和2-羧基-1-甲基-吡啶鎓氯化物,1-甲基吡啶鎓氯化物,氰化物离子,氨和二氧化碳。1-甲基-2-吡啶酮是通过氰化物离子的存在间接鉴定的。降解率随着pH值在1和3.2之间的增加以及浓度在1和50%w / v的氯吡氧肟之间的增加而增加。结果表明1(X- = Cl-)通过腈2的羟基离子催化反应脱水,该腈2水解为吡啶酮6和氰化物离子或水解为2-羧酰胺基-1-甲基吡啶鎓氯化物3。