作者:J. R. Brewer、J. R. Jones、K. W. M. Lawrie、D. Saunders、A. Simmonds
DOI:10.1002/jlcr.2580340812
日期:1994.8
A range of organic compounds have been tritiated (and in some cases deuteriated) via hydrogen isotope exchange reactions using polymer supported base catalysts. The problem of poor thermal stability of some commercially available anion exchange resins, which limits their use as tritiation catalysts, has been overcome by the preparation of a more stable polymer supported pyridinium salt. The anion exchange resins are as effective at very high activities of tritiated water as they are at low and compounds containing nitro groups, which poison metal-catalysed exchange reactions, can be successfully labelled.
利用聚合物支撑的碱催化剂,通过氢同位素交换反应对一系列有机化合物进行了氚化(有时还进行了脱氚)。某些市售阴离子交换树脂的热稳定性较差,限制了它们作为氚化催化剂的使用,通过制备更稳定的聚合物支撑吡啶鎓盐,这一问题得到了解决。阴离子交换树脂对活性很高的氚化水和活性很低的氚化水同样有效,而且可以成功标记含有硝基的化合物,因为硝基会毒害金属催化的交换反应。