Rhodium(III)-Catalyzed C6-Selective Arylation of 2-Pyridones and Related Heterocycles Using Quinone Diazides: Syntheses of Heteroarylated Phenols
作者:Debapratim Das、Puja Poddar、Saurabh Maity、Rajarshi Samanta
DOI:10.1021/acs.joc.7b00135
日期:2017.4.7
An efficient, direct C6-arylation of 2-pyridones has been successfully accomplished with quinone diazides under Rh(III)-catalyzed redox-neutral conditions. The optimized method is simple, mild, and highly regioselective with a broad substrate scope. The strict regioselectivity is guided by the pyridyl substituent attached to the nitrogen of the pyridone ring. As the directing 2-pyridyl group can easily
在Rh(III)催化的氧化还原中性条件下,醌二叠氮化物已成功完成了2-吡啶酮的有效,直接C6-芳基化反应。优化的方法简单,温和,区域选择性高,具有广泛的底物范围。严格的区域选择性由与吡啶酮环的氮相连的吡啶基取代基决定。由于在官能化之后的任何合适阶段都可以容易地除去指导2-吡啶基,该方法通过宽范围的杂环支架提供了对复杂的杂芳基苯酚部分的容易获得的途径。