Free Radical-Promoted Monochloroalkylarylation of Alkenes with Chloralkanes
作者:Yingming Ren、Yaxin Ge、Qinqin Yan、Shiliu Chen、Yang Li、Lijun Li、Zhong-Quan Liu、Zejiang Li
DOI:10.1021/acs.joc.1c01605
日期:2021.9.3
cascade cyclization of unactivated alkenes with chloralkanes, which undergoes selective activation of the α-C(sp3)–H bond of chloralkanes, provides a protocol for the synthesis of chlorinated heterocycles or polycyclic compounds. A series of radical inhibition experiments, radical capture operations, and radical clock tests were studied in this system.
Copper-Catalyzed Hydroxyperfluoroalkylation of Unactivated Alkenes: Access to β-Perfluoroalkyl Alcohols
作者:Luqing Tang、Cancan Feng、Fan Yang、Yangjie Wu
DOI:10.1021/acs.orglett.3c00651
日期:2023.4.28
An expeditious copper-catalyzed three-component hydroxyperfluoroalkylation of unactivated alkenes starting from commercially available perfluoroalkyliodides and an O2 molecule from air as the oxygen source was developed. The Cu/B2pin2 catalytic system offered a novel pattern for the generation of perfluoroalkyl radicals and overcame the previous limitations in the hydroxyperfluoroalkylation of unactivated
以市售的全氟烷基碘和来自空气的 O 2分子作为氧源,开发了一种快速的铜催化的未活化烯烃的三组分羟基全氟烷基化反应。Cu/B 2 pin 2催化体系为全氟烷基自由基的产生提供了一种新的模式,并克服了先前在未活化烯烃的羟基全氟烷基化中的局限性。该催化方案具有高区域选择性和广泛的底物范围,可以方便地获得有价值的 β-全氟烷基醇。18 O标记实验表明,OH基团的氧原子来源于空气中的O 2。