Selective and Catalytic Hydrocarboxylation of Enamides and Imines with CO
<sub>2</sub>
to Generate α,α‐Disubstituted α‐Amino Acids
作者:Tao Ju、Qiang Fu、Jian‐Heng Ye、Zhen Zhang、Li‐Li Liao、Si‐Shun Yan、Xing‐Yang Tian、Shu‐Ping Luo、Jing Li、Da‐Gang Yu
DOI:10.1002/anie.201806874
日期:2018.10.15
The first catalytic hydrocarboxylation of enamides and imines with CO2 to generate valuable α,α‐disubstituted α‐amino acids is reported. Notably, excellent chemo‐ and regio‐selectivity are achieved, significantly different from previous reports on β‐carboxylation of enamides, homocoupling or reduction of imines. Moreover, this transition‐metal‐free procedure exhibits low loading of an inexpensive catalyst
据报道,酰胺和亚胺与CO 2的第一次催化加氢羧化反应生成有价值的α,α-二取代的α-氨基酸。值得注意的是,实现了出色的化学和区域选择性,这与先前有关酰胺的β-羧化,亚胺的均偶联或还原的报道有显着差异。此外,这种无过渡金属的方法显示出廉价催化剂的低负载量,易于获得的底物,温和的反应条件,高效,易扩展性和易于产品衍生化,为有机合成,药物化学和生物化学的应用提供了巨大潜力。