A highly convergent and efficient protocol, for the facile synthesis of a library of coumarin fused pyridine and pyridopyrimidine derivatives, has been developed by applying a Lewis base-surfactant-combined catalyst (LBSC) triethanolamine (TEOA). The method described has the benefits of operational simplicity and excellent yields of the targeted molecule. The LBSCs were found to form stable colloidal dispersions rapidly in the presence of reaction substrates in water, even when the substrates are solid. In light of the increased demand for reduction of organic solvents in industry, the surfactant aided Lewis base catalysis described here may have immense practical consequences in organic synthesis. This work may not only lead to environmentally benign systems but also will provide a newer aspect of organic chemistry in water.
通过使用路易斯碱-表面活性剂-复合催化剂(L
BSC)
三乙醇胺(TEOA),我们开发出了一种高度收敛且高效的方案,用于快速合成
香豆素融合
吡啶和
吡啶嘧啶衍
生物库。该方法具有操作简单、目标分子产率高的优点。研究发现,即使反应底物是固体的,L
BSC 也能在
水中与反应底物迅速形成稳定的胶体分散体。鉴于工业中对减少有机溶剂的需求日益增加,本文所述的表面活性剂辅助路易斯碱催化可能会在有机合成中产生巨大的实际影响。这项工作不仅可能产生对环境无害的系统,还将为
水中有机
化学提供一个更新的方面。