作者:Yi-Zhan Wang、Qi Liu、Liang Cheng、Song-Chen Yu、Li Liu、Chao-Jun Li
DOI:10.1016/j.tet.2020.131889
日期:2021.1
The addition of organometallic reagents to unsaturated bonds is one of the most powerful tools for carbon–carbon bond formations. Alkylation through organometallic reagents requires stoichiometric quantity of metal and tedious anhydrous operation in most cases. Here, we report “umpolung” nucleophilic additions of hydrazones to Michael acceptors, carbonyls and imines in water. Under the catalysis of
在不饱和键中添加有机金属试剂是形成碳-碳键的最强大工具之一。在大多数情况下,通过有机金属试剂进行烷基化需要化学计量的金属和繁琐的无水操作。在这里,我们报道了“的“ Michael酚”亲核加成反应到水中的迈克尔受体,羰基和亚胺。在钌(II)的催化下,加成反应可在纯水中进行,以中等至良好的产率提供各种烷基化产物。