Rh-Catalyzed C–H Activation/Annulation of Enaminones and Cyclic 1,3-Dicarbonyl Compounds: An Access to Isocoumarins
作者:Qian Wang、Ying Li、Jina Sun、Shiyu Chen、Hui Li、Yu Zhou、Jian Li、Hong Liu
DOI:10.1021/acs.joc.2c02898
日期:2023.5.5
rhodium(III)-catalyzed C–H bond activation and intramolecular C–C cascade annulation of enaminones and cyclic 1,3-dicarbonyl compounds. The synthetic protocol features a wide range of substrates with high functional group tolerance, mild reaction conditions, and the selective cleavage of the enaminone C–C bond. Notably, the cyclic 1,3-dicarbonyl compounds can in situ-generate iodonium ylide as a carbene precursor
通过铑 (III) 催化的 C-H 键活化和烯胺酮和环状 1,3-二羰基化合物的分子内 C-C 级联环化,可以轻松获得异香豆素。合成方案具有广泛的底物范围,具有高官能团耐受性、温和的反应条件和烯胺酮 C-C 键的选择性裂解。值得注意的是,环状 1,3-二羰基化合物可以原位生成碘鎓叶立德作为卡宾前体,通过与 PhI(OAc) 2反应制备多环支架。还举例说明了该方法在制备有用的合成前体和生物活性骨架方面的应用。