Rhodium catalyzed direct C3-ethoxycarbonylmethylation of imidazo[1,2-a]pyridines with ethyl diazoacetate
作者:Qiuyao Huang、Hui Dong、Bingbing Li、Wenhao Hu、Yuanxiang Wang
DOI:10.1016/j.tet.2020.130998
日期:2020.3
An efficient and environment-friendly C3-ethoxycarbonylmethylation of imidazo[1,2-a]pyridines with ethyl diazoacetate in the presence of a Rh(II) catalyst was developed. Such strategy not only enables the synthesis of zolpidem, but also provides a way to generate synthetic intermediates to afford cellular active anticancer agents.
Metal- and additive-free direct C3-aminomethylation of imidazo[1,2–a]pyridines with 1,3,5-triazinanes
作者:Zongbo Feng、Lin Deng、Jianwei Wei、Yingqi Wu、Zhimin Jiang、Yuanxiang Wang
DOI:10.1016/j.tetlet.2022.153790
日期:2022.5
An efficient C3-aminomethylation of imidazo[1,2–a]pyridines with 1,3,5-triazinanes was developed. The eminent advantage of this work is catalyst-free and additive-free. The power of this transformation has been demonstrated by the broad substrate scope and good functional group tolerance.
开发了一种有效的 C3-氨基甲基化咪唑并[1,2 - a ]吡啶与 1,3,5-三嗪烷。这项工作的显着优势是无催化剂和无添加剂。广泛的底物范围和良好的官能团耐受性证明了这种转化的力量。