作者:Weiping Liu、Sven C. Richter、Yujiao Zhang、Lutz Ackermann
DOI:10.1002/anie.201601560
日期:2016.6.27
The first manganese(I)‐catalyzed C−H allylations with ample scope were achieved by carboxylate assistance. The highly selective C−H/C−O functionalizations proved viable with densely substituted allyl carbonates, and the organometallic C−H allylation strategy set the stage for expedient late‐stage diversification with excellent levels of positional selectivity.
通过羧酸盐的辅助作用,第一个锰(I)催化的CH烯丙基化作用范围很大。事实证明,高选择性的C / H / C-O功能化可用于稠密取代的碳酸烯丙酯,有机金属的C-H烯丙基化策略可为后期分散化提供有利的条件,并具有出色的位置选择性。
Ruthenium-catalyzed oxidative alkyne annulation by C–H activation on ketimines
作者:Jie Li、Lutz Ackermann
DOI:10.1016/j.tet.2013.10.003
日期:2014.5
Carboxylate assistance allowed for ruthenium(II)-catalyzed oxidative alkyne annulations by ketimines under an ambient atmosphere of air. The rutheniumcatalyst outperformed representative rhodium and palladium complexes, and provided versatile access to differently decorated 1-methylene-1,2-dihydroisoquinolines in a highly step- and atom-economical manner. Detailed mechanistic studies provided evidence
Hβ Catalyzed Condensation Reaction Between Aromatic Ketones and Anilines: To Access Ketimines (Imines)
作者:Vasu Amrutham、Naresh Mameda、Srujana Kodumuri、Durgaiah Chevella、Rammurthy Banothu、Krishna Sai Gajula、Nellya Gennadievna Grigor’eva、Narender Nama
DOI:10.1007/s10562-017-2196-0
日期:2017.12
A simple approach for the formation of imines by condensation of ketones and anilines over heterogeneous catalyst (Hβ zeolite) has been successfully developed. The present catalytic system scope was explored for various aromatic ketones and anilines. Furthermore, Hβ zeolite can be easily separable and recycled several times (five times) without considerable loss of its catalytic activity.Graphical
Rhodium(III)-Catalyzed Hydroamination of Aromatic Terminal Alkynes with Anilines
作者:Elumalai Kumaran、Weng Kee Leong
DOI:10.1021/om201134j
日期:2012.2.13
The dinuclear Rh(III) species [Cp*RhCl2]2 catalyzes the hydroamination reaction between an aromatic terminalalkyne (ArCCH) and an aniline (Ar′NH2), in the presence of a salt additive, to afford the ketimine Ar′N═C(Me)(Ar). A reaction pathway has been proposed on the basis of experimental and computational studies.
A Rhodium-Catalyzed [3 + 2] Annulation of General Aromatic Aldimines/Ketimines and <i>N-</i>Substituted Maleimides
作者:Chengfeng Zhu、Jichao Luan、Jun Fang、Xu Zhao、Xiang Wu、Yougui Li、Yunfei Luo
DOI:10.1021/acs.orglett.8b02671
日期:2018.9.21
A new class of rhodium-catalyzed, C–Hactivation triggered [3 + 2] annulations of aromatic aldimines or ketimines and maleimides was reported in this study. A broad scope of general imines without electron-withdrawing groups were successfully activated and could effectively react with N-substituted maleimide to afford pericyclic, multichiral centered amines in good yields and with excellent diastereoselectivity