A series of higher-order lanthanoid-lithium mixed-alkoxide complexes have been prepared as a novel water-tolerant base catalyst which effectively promotes the Robinson-type reaction in the presence of water.
Iodine-Promoted Semmler-Wolff Reactions: Step-Economic Access to<i>meta</i>-Substituted Primary Anilines via Aromatization
作者:Shi-Ke Wang、Xia You、Da-Yuan Zhao、Neng-Jie Mou、Qun-Li Luo
DOI:10.1002/chem.201701712
日期:2017.9.4
An atom‐ and step‐economic access to an array of unprotected meta‐substituted primary anilines was disclosed using the Semmler–Wolff reaction, promoted by molecular iodine. Therein, noble metal catalysts and inert atmosphere are unnecessary while the forcing reaction conditions and the lengthy synthesis can be avoided. The synthetic utility of this approach is evident in the de novo syntheses of three
Copper-Catalyzed Synthesis of Substituted Primary Arylamines from Cyclohexenone Oxime Esters
作者:Yong-Jie Kuang、Yan Yu、Min Zhou、Yu-Cheng Yin、Tian Cai、Qun-Li Luo
DOI:10.1021/acs.orglett.3c03501
日期:2023.12.8
A novel protocol has been developed for the Cu-catalyzed synthesis of primary arylamines with meta-substituents using cyclohexenone oxime esters. Mechanistic insights suggest that the reaction proceeds via an intermolecular 1,5-H hydrogen atom transfer of an imine radical intermediate. This approach features high efficiency, a readily available catalyst system, and broad functional group tolerance