NH<sub>4</sub>OAc-Promoted Domino Route to Hydroxyarylated Unsymmetrical Pyridines under Neat Conditions
作者:Meher Prakash、Santosh K. Gudimella、Rajni Lodhi、Soumitra Guin、Sampak Samanta
DOI:10.1021/acs.joc.9b02896
日期:2020.2.21
domino method has been established for modular synthesis of a diverse range of medicinally promising hydroxyarylated unsymmetrical pyridines in good to high chemical yields with an excellent regioselectivity. This domino process involves a range of N-sulfonyl ketimines as C,N-binucleophiles, enolizable ketones, and aromatic/heteroaromatic aldehydes using ammonium acetate as an ideal promoter under neat
已经建立了一种新的无金属,无氧化剂和无溶剂的环保多米诺骨牌方法,用于以良好的化学收率和良好的区域选择性,以模块化方式合成多种医学前景看好的羟基芳基化不对称吡啶。该多米诺过程涉及一系列N-磺酰基酮亚胺,如C,N-双亲核试剂,可烯化的酮和芳香族/杂芳香族醛,使用乙酸铵作为理想的促进剂,在纯净条件下产生两个新的CC键和一个CN键。值得注意的是,中性反应条件温和到足以耐受一定范围的功能并覆盖各种底物,因此为接触包括碳-和杂环稠合吡啶的三和四取代吡啶提供了强大的途径。有趣的是,实用,可扩展,