作者:Joseph R. Carlise、Robert M. Kriegel、William S. Rees,、Marcus Weck
DOI:10.1021/jo050556a
日期:2005.7.1
various functionalized norbornenes that are monomers for the ring-opening metathesis polymerization (ROMP) in aqueous solution were evaluated toward hydrolysis under a range of temperatures (37, 60, and 80 °C) and pH values (3−9). All monomers contain hydrolyzable linkages to pendant functional groups, and conclusions were drawn relating to how the chemical diversity of these pendant functional groups
评估了在水溶液(37、60和80°C)和pH值(3-9)下水解时作为开环易位聚合(ROMP)单体的各种官能化降冰片烯的稳定性。所有单体均含有与侧基官能团的可水解键,并且得出关于这些侧基官能团的化学多样性如何根据pH和温度变化如何影响上述键的水解的结论。通过反相HPLC分析和/或NMR光谱监测水解。不出所料,含有酯键的单体在较高的pH值下相当不稳定,而在较低的pH值下,基于乙缩醛的连接基会断裂。β-氨基酯基团的水解速率显着增加,而含羧酸的单体则没有任何明显的趋势。含糖单体在各种pH值和温度范围内均表现出独特的行为。