Photochemical regioselective C–H arylation of imidazo[1,2-<i>a</i>]pyridine derivatives using chlorophyll as a biocatalyst and diazonium salts
作者:Ali Moazzam、Sara Moghadam Farid、Nima Khaleghi、Naeimeh Alizadeh、Mohammad Mahdavi
DOI:10.1039/d1nj06059g
日期:——
method for the arylation of imidazo[1,2-a]pyridine with diazonium salt derivatives and using chlorophyll as a biocatalyst via visible-light catalysis. Natural pigments such as chlorophyll are used as a green photosensitizer and an environmentally benign catalyst. The general and easy procedure provides a transition-metal-free alternative for the formation of 2,3-diaryl imidazo[1,2-a]pyridine derivatives
该通讯描述了一种温和的方法,用于用重氮盐衍生物芳基化咪唑并[1,2- a ]吡啶,并通过可见光催化使用叶绿素作为生物催化剂。叶绿素等天然色素被用作绿色光敏剂和对环境无害的催化剂。通用且简单的程序为在环境温度下以良好至极好的收率形成 2,3-二芳基咪唑并[1,2- a ] 吡啶衍生物提供了一种不含过渡金属的替代方案。