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Direct enantioselective α-amination of amides guided by DFT prediction of E/Z selectivity in a sulfonium intermediate
Chem ( IF 19.1 ) Pub Date : 2023-03-30 , DOI: 10.1016/j.chempr.2023.03.002
Minghao Feng , Anthony J. Fernandes , Ricardo Meyrelles , Nuno Maulide
中文翻译:
硫鎓中间体中 E/Z 选择性的 DFT 预测指导的酰胺的直接对映选择性 α-胺化
更新日期:2023-03-30
Chem ( IF 19.1 ) Pub Date : 2023-03-30 , DOI: 10.1016/j.chempr.2023.03.002
Minghao Feng , Anthony J. Fernandes , Ricardo Meyrelles , Nuno Maulide
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Chiral amines are a highly important class of compounds for which powerful synthetic approaches remain in high demand. Herein, we report an unprecedented method for the preparation of chiral α-amino amides from cheap and abundant starting materials. Our strategy relies on a direct amination of amides using enantiopure sulfinamides. It involves a [2,3]-sigmatropic rearrangement of a key sulfonium intermediate. We further show how quantum chemical calculations allow predictive insights into the critical E/Z selectivity of this amino-vinyloxy-sulfonium species.
中文翻译:

硫鎓中间体中 E/Z 选择性的 DFT 预测指导的酰胺的直接对映选择性 α-胺化
手性胺是一类非常重要的化合物,对其强大的合成方法仍然有很高的需求。在此,我们报告了一种前所未有的从廉价且丰富的起始原料制备手性 α-氨基酰胺的方法。我们的策略依赖于使用对映体纯亚磺酰胺对酰胺进行直接胺化。它涉及关键硫鎓中间体的 [2,3]-σ 重排。我们进一步展示了量子化学计算如何允许对这种氨基-乙烯氧基-硫鎓物种的关键E/Z选择性进行预测性洞察。