Synthesis of 3-Substituted Isocoumarins via a Cascade Intramolecular Ullmann-Type Coupling–Rearrangement Process
作者:Zhi-Yuan Ge、Xiang-Dong Fei、Ting Tang、Yong-Ming Zhu、Jing-Kang Shen
DOI:10.1021/jo300916s
日期:2012.7.6
highly efficient strategy for the synthesis of 3-substituted isocoumarins through a copper(I)-catalyzed reaction of 1-(2-halophenyl)-1,3-diones has been developed. The procedure is based on a cascade copper-catalyzed intramolecular Ullmann-type C-arylation and rearrangement process. This methodology is tolerant of a wide range of substrates and applicable to library synthesis.
通过铜(I)催化的1-(2-卤代苯基)-1,3-二酮的反应合成3-取代的香豆素的简单高效的策略已被开发出来。该程序基于级联铜催化的分子内Ullmann型C-芳基化和重排过程。这种方法可以耐受多种底物,并适用于文库合成。