Yin Boyang, Croutxé-Barghorn Céline, Delaite Christelle, Allonas Xavier
Laboratory of Macromolecular Photochemistry and Engineering, University of Haute-Alsace 3 rue Alfred Werner 68093 Mulhouse Cedex France
RSC Adv. 2019 Feb 7;9(9):4824-4831. doi: 10.1039/c8ra10011j. eCollection 2019 Feb 5.
A solvent-free process is described for the synthesis of tailor-made molecules from a one-pot, two-step approach combining aza-Michael addition and photoinduced copper(i) catalysed azide-alkyne (photo-CuAAC) reactions. After the first reaction between an amine and an acrylate, cycloaddition between an azide and an alkyne is activated by light irradiation in the presence of a copper complex. The kinetics of the aza-Michael addition and photo-CuAAC reaction were investigated by liquid state H NMR spectroscopy and real-time Fourier transform infrared spectroscopy. This new process represents a well-defined spatio-temporal pathway to the synthesis of bespoke intermediate molecules for various applications.
描述了一种无溶剂方法,该方法采用一锅两步法合成定制分子,该方法结合了氮杂迈克尔加成反应和光诱导铜(I)催化的叠氮化物-炔烃环加成反应(光催化铜催化的点击化学反应)。在胺与丙烯酸酯之间的第一步反应之后,在铜配合物存在下通过光照射激活叠氮化物与炔烃之间的环加成反应。通过液态核磁共振光谱和实时傅里叶变换红外光谱研究了氮杂迈克尔加成反应和光催化铜催化的点击化学反应的动力学。这种新方法代表了一种明确的时空途径,可用于合成各种应用的定制中间体分子。