We use kinetic data, photophysical properties, and mechanistic analyses to compare recently developed high-rate constant oxime and hydrazone formations. We show that when Schiff base formation between aldehydes and arylhydrazines is carried out with an appropriately positioned boron atom, then aromatic B–N heterocycles form irreversibly. These consist of an extended aromatic structure amenable to the
我们使用动力学数据,光物理性质和机理分析来比较最近开发的高速率恒定
肟和的形成。我们显示,当醛和芳基
肼之间的席夫碱形成是通过适当定位的
硼原子进行的时,则芳香族B–N杂环不可逆地形成。这些由适合特定特性(例如反应速率和荧光)的扩展的芳族结构组成。该反应在中性
水性缓冲液中效果最好,并且可以设计成具有荧光性的特性,这些特性在
生物缀合中特别有趣。