Transition-Metal-Free Lactonization of sp<sup>2</sup> C–H Bonds with CO<sub>2</sub>
作者:Zhen Zhang、Tao Ju、Meng Miao、Jie-Lian Han、Yi-Han Zhang、Xing-Yong Zhu、Jian-Heng Ye、Da-Gang Yu、Yong-Gang Zhi
DOI:10.1021/acs.orglett.6b03601
日期:2017.1.20
The transition-metal-free lactonization of heteroaryl and alkenyl C–H bonds with carbon dioxide is reported to synthesize important coumarin derivatives in moderate to excellent yields. These redox-neutral reactions feature a broad substrate scope, good functional group tolerance, facile scalability, and easy product derivatization.
据报道,杂芳基和烯基C–H键与二氧化碳的无过渡金属内酯化可以以中等至极好的收率合成重要的香豆素衍生物。这些氧化还原中性反应具有广泛的底物范围,良好的官能团耐受性,易扩展性和易于产品衍生化的特点。