A copper(II)-mediated radical cross-dehydrogenative coupling/sulfinic acid elimination approach to 2-quinolones
作者:Ryan M. Gorman、Timothy E. Hurst、Wade F. Petersen、Richard J.K. Taylor
DOI:10.1016/j.tet.2019.130711
日期:2019.12
cyclisation procedure to prepare 4-carboxy-quinolin-2-ones via a one-pot Cu(II)-mediated radical cross-dehydrogenative coupling/sulfinic acid elimination of linear anilides is described. Extensions to more complex substrates are also reported as are applications in target synthesis allowing access to natural products isolated from Oryza sativa and HOFQ.
描述了一种新的环化程序,可通过一锅Cu(II)介导的自由基,交叉脱氢偶联/亚磺酸消除线性苯胺来制备4-羧基-喹啉-2-酮。还报道了扩展到更复杂的底物,以及在靶标合成中的应用,从而允许获得从稻和HOFQ中分离的天然产物。