Cobalt-Catalyzed C–H Acetoxylation of Phenols with Removable Monodentate Directing Groups: Access to Pyrocatechol Derivatives
作者:Quan Gou、Xiaoping Tan、Mingzhong Zhang、Man Ran、Tengrui Yuan、Shuhua He、Linzong Zhou、Tuanwu Cao、Feihua Luo
DOI:10.1021/acs.orglett.0c00312
日期:2020.3.6
An efficient cobalt-catalyzed C-H acetoxylation of phenols has been developed by using PIDA (phenyliodine diacetate) as a sole acetoxy source to synthesize pyrocatechol derivatives for the first time. The key feature of this method is the use of earth-abundant metal cobalt as the green and inexpensive catalyst for the acetoxylation of C(sp2)-H bonds under neutral reaction conditions. Furthermore, the
通过使用PIDA(二碘苯基碘)作为唯一的乙酰氧基源,首次合成邻苯二酚衍生物,已经开发出一种高效的钴催化的苯酚CH乙酰氧基化方法。该方法的关键特征是在中性反应条件下,使用富含土的金属钴作为绿色廉价的催化剂,用于C(sp2)-H键的乙酰氧基化。此外,克级反应和后期官能化证明了该方法的有效性。