Monomeric Octahedral Ruthenium(II) Complex Enabled <i>meta</i>-C–H Nitration of Arenes with Removable Auxiliaries
作者:Zhoulong Fan、Jie Li、Heng Lu、Dong-Yu Wang、Chao Wang、Masanobu Uchiyama、Ao Zhang
DOI:10.1021/acs.orglett.7b01297
日期:2017.6.16
A removable oxime-assisted meta-C–H nitration of arenes is reported. Mechanistic investigations and DFT calculations reveal a new monomeric octahedral ruthenium(II) complex is responsible for the meta-selective nitration. Dioxygen as a cooxidant is crucial for achieving high conversion and good yields. Moreover, the utility of the present reaction protocol is further showcased by the late-stage modification
据报道,一种可移动的肟辅助的芳烃间位-CH硝化硝化反应。机理研究和DFT计算表明,新的单体八面体钌(II)络合物负责亚选择性硝化。作为共氧化剂的双氧对于实现高转化率和高收率至关重要。此外,通过临床CNS药物地西p和氟伏沙明的后期修饰进一步展示了本反应方案的实用性。