Rhodium-Catalyzed Intermolecular Reaction of Alkyl Azides with Diazo(aryl)acetates
作者:Peiming Gu、Xiu-Ping Wu、Yan Su、Xue-Qiang Li、Ping Xue、Rui Li
DOI:10.1055/s-0033-1340173
日期:——
An efficient intermolecular interception of alkyl azides by diazo(aryl)acetates was achieved in the presence of dirhodium tetraoctanoate. The initial products were unstable α-imino esters, and overaddition of carbenoids to the C–N double bonds was avoided. After acidic workup, the corresponding α-keto esters were obtained in good to excellent yields.
在四辛酸二铑的存在下实现了重氮(芳基)乙酸酯对烷基叠氮化物的有效分子间拦截。初始产物是不稳定的 α-亚氨基酯,避免了类卡宾在 C-N 双键上的过度加成。酸处理后,相应的α-酮酯以良好到极好的收率获得。