A coumarin-based derivative (1), a highly selective and sensitive turn-on fluorogenic probe for the detection of HSO4â ions in aqueous solution, has been designed and synthesized. Various spectroscopic and DFT calculations revealed that H-bonding between the phenolic âOH and imine nitrogen of 1 played a crucial role in its high selectivity for HSO4â.
develop an efficient and workable method for the reduction of imines via hydroboration with HBpin. The low cost and non-toxic Fe exhibits high catalytic activity to this hydroboration. A large range of aldimines comprising diverse aryl groups, alkyl groups and heterocycles proceed the hydroboration well to yield secondary amines in good to excellent yields. Kinetic mechanistic studies indicate the importance
我们开发了一种有效且可行的方法,用于通过 HBpin 硼氢化还原亚胺。低成本且无毒的Fe对这种硼氢化反应具有高催化活性。包含不同芳基、烷基和杂环的大范围醛亚胺可以很好地进行硼氢化,以良好至极好的产率产生仲胺。动力学机制研究表明 Fe 在 HBpin 转化为活性物质中的重要性。通过该策略制备几种市售药物突出了其在药物化学中的潜在应用。