摘要
考察了D-异抗坏血酸钠与碱在一定温度下于不同比例的CH3OH-H2O体系中的反应。用TLC法定性确定了反应产物为2-酮基-D-葡萄糖酸盐,用碘量法确定了D-异抗坏血酸钠在上述体系中的水解程度。结果表明,D-异抗坏血酸钠在碱-CH3OH中是稳定的,而在碱-CH3OH-H2O中,随着反应温度的升高、碱或H2O的量增大,水解反应的程度增大。
The stability of sodium D-isoascorbate in base-CH_3OH-H_2O media is investigated. In the absence of water, sodium D-isoascorbate is stable. In the presence of water, however, the hydrolysis of sodium D-isoascorbate becomes obvious as the reaction temperature and the amount of base are increased. The TLC result shows that the hydrolysis product of sodium D-isoascorbate is 2-keto-gluconate.
出处
《化学世界》
CAS
CSCD
北大核心
2004年第4期192-194,共3页
Chemical World
