Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, The Netherlands.
ChemSusChem. 2012 Sep;5(9):1703-7. doi: 10.1002/cssc.201200323. Epub 2012 Jun 29.
A continuous-flow synthesis for the Cu(I) -catalyzed azide-alkyne cycloaddition reaction using [Cu(phenanthroline)(PPh₃)₂]NO₃ as a homogeneous catalyst is developed (up to 92 % isolated yield). Elevated temperatures allow achieving full conversions and using lower catalyst loadings. Residual copper in the triazole compound is efficiently removed via an inline extraction process, employing aqueous EDTA as a copper scavenger.
开发了一种使用[Cu(菲咯啉)(PPh₃)₂]NO₃作为均相催化剂的连续流合成 Cu(I)-催化叠氮化物-炔烃环加成反应的方法(最高分离产率为 92%)。升高温度可以实现完全转化并使用较低的催化剂负载量。三唑化合物中的残留铜通过在线萃取过程有效去除,使用 EDTA 水溶液作为铜清除剂。