Acid-Mediated Denitrogenation/Rearrangement/Coupling of Benzyl Azides with Triazolyl-Substituted Cycloalkanones
作者:Ying Fu、Zhengyin Du、Yang Che、Rui Wang
DOI:10.1055/s-0037-1610747
日期:2020.3
Organic molecules containing α-triazolyl or β-amino cyclic ketone fragments have been individually proven to show good bioactivities and to be useful in asymmetric and pharmaceutical syntheses. A triflic acid-promoted simple and efficient method for the synthesis of unsymmetrical α-triazolyl-α′-(aminomethyl)cycloalkanones from benzyl azides and α-triazolylcycloalkanones has been developed. A series
含有 α-三唑基或 β-氨基环酮片段的有机分子已被单独证明显示出良好的生物活性,可用于不对称和药物合成。已经开发了一种三氟甲磺酸促进的简单有效的方法,用于从苄基叠氮化物和 α-三唑基环烷酮合成不对称 α-三唑基-α'-(氨甲基)环烷酮。以高顺式非对映选择性和高达 82% 的产率获得了一系列不对称的 α,α'-二取代环烷酮。对反应机理的检查表明,苄基叠氮化物通过环酮的烯醇形式进行质子化、氮消除、重排和亲电攻击。