Blencowe Christopher A, Thornthwaite David W, Hayes Wayne, Russell Andrew T
Department of Chemistry, University of Reading, Reading, Berkshire RG6 6AD, UK.
Org Biomol Chem. 2015 Aug 28;13(32):8703-7. doi: 10.1039/c5ob00984g. Epub 2015 Jul 16.
A range of carbamate functionalized 1,4-disubstituted triazoles featuring a base sensitive trigger residue, plus a model aromatic amine reporter group, were prepared via copper(i) catalysed azide-alkyne cycloaddition and evaluated for their self-immolative characteristics. This study revealed a clear structure-reactivity relationship, via Hammett analysis, between the structure of the 1,4-disubstituted triazole and the rate of self-immolative release of the amine reporter group, thus demonstrating that under basic conditions this type of triazole derivative has the potential to be employed in a range of chemical release systems.
通过铜(I)催化的叠氮化物-炔烃环加成反应,制备了一系列具有碱敏感触发残基以及模型芳香胺报告基团的氨基甲酸酯官能化的1,4-二取代三唑,并对其自牺牲特性进行了评估。通过哈米特分析,该研究揭示了1,4-二取代三唑的结构与胺报告基团自牺牲释放速率之间明确的结构-反应性关系,从而表明在碱性条件下,这类三唑衍生物有潜力应用于一系列化学释放系统中。