The mechanism for the conversion of uric acid into allantoin and dehydro-allantoin
作者:M. Poje、Lea Sokolić-Maravić
DOI:10.1016/s0040-4020(01)87480-9
日期:1986.1
The reaction of uric acids 1 with iodine in alkaline solution yields, on acidification, new dehydro-allantoins 11, or normal oxidation products, allantoins 13, depending on whether an excess or a stoichiometric amount of oxidant was used. The structure and regiochemistry of dehydro-allantoins 11 was established by chemical, spectroscopic, and 14C-labelling methods. These experimental results, in combination
尿酸1与碘在碱性溶液中的反应在酸化时会产生新的脱氢丙氨酸11或正常的氧化产物尿囊素13,这取决于使用了过量还是化学计量的氧化剂。通过化学,光谱和14 C标记方法建立了脱氢丙氨酸11的结构和区域化学。这些实验结果与其他数据相结合,为尿囊素的尿液溶解途径生成了一种新的机制方案,排除了在脱羧步骤之前进行对称过渡态的干预。