Visible-Light Photocatalytic Preparation of 1,4-Ketoaldehydes and 1,4-Diketones from α-Bromoketones and Alkyl Enol Ethers
作者:William H. García-Santos、Jeferson B. Mateus-Ruiz、Alejandro Cordero-Vargas
DOI:10.1021/acs.orglett.9b01275
日期:2019.6.7
A Ru2+-photocatalyzed, visible-light-mediated ATRA reaction for the straightforward preparation of 1,4-ketoaldehydes, 1,4-diketones, and 1,4-ketoesters, which are of difficult access by other means, is reported herein. This method employs readily accessible α-bromoketones and alkyl vinyl ethers as starting materials, allowing the construction of secondary, tertiary, and challenging quaternary centers
本文报道了Ru 2+光催化的可见光介导的ATRA反应,用于直接制备难以通过其他方式获得的1,4-酮醛,1,4-二酮和1,4-酮酸酯。 。该方法采用易于获得的α-溴代酮和烷基乙烯基醚作为起始原料,从而可以构建仲,叔和具有挑战性的季中心。另外,通过将该方法应用于取代的吡咯的构造来说明该方法的合成有用性。