Nickel-Catalyzed Regioselective Cross-Dehydrogenative Coupling of Inactive C(sp<sup>3</sup>)–H Bonds with Indole Derivatives
作者:Li-Kun Jin、Li Wan、Jie Feng、Chun Cai
DOI:10.1021/acs.orglett.5b02217
日期:2015.10.2
A nickel-catalyzed regiosepecific C2- versus C3-oxidative cross-coupling reaction of indoles with 1,4-dioxane and other inactive C(sp3)–H bonds is described. The divergent synthesis of C(sp3)–C(sp2) bonds was achieved in satisfactory yields with di-tert-butyl peroxide (DTBP) as the oxidant, which provides an efficient strategy for the selective construction of cyclic ethers containing heteroaromatic
描述了镍催化的吲哚与1,4-二恶烷和其他非活性C(sp 3)-H键的C2与C3氧化交叉偶联反应。以过氧化二叔丁基(DTBP)为氧化剂,以令人满意的产率实现了C(sp 3)–C(sp 2)键的发散合成,这为选择性构建含杂芳族核的环醚提供了有效的策略结构。