Employing Arynes in Transition-Metal-Free Monoarylation of Aromatic Tertiary Amines
作者:Sachin Suresh Bhojgude、Trinadh Kaicharla、Akkattu T. Biju
DOI:10.1021/ol4029258
日期:2013.11
The highly monoselective N-arylation of aromatictertiaryamines using a transition-metal-free approach using arynes has been developed. The reaction afforded functionalized diaryl amines in moderate to excellent yield. High levels of functional group compatibility especially with halogen containing substrates, dyes and donor–acceptor systems, and high yields of products are the notable features of
Herein we report a highly para-selective C–H olefination of anilinederivatives by a Pd/S,O-ligand-based catalyst. The reaction proceeds under mild reaction conditions with high efficiency and broad substrate scope, including mono-, di-, and trisubstituted tertiary, secondary, and primary anilines. The S,O-ligand is responsible for the dramatic improvements in substrate scope and the high para-selectivity
TRANSITION-METAL-FREE N-ARYLATION OF TERTIARY AMINES USING ARYNES
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20160137587A1
公开(公告)日:2016-05-19
The present invention relates to transition-metal-free process for the synthesis of tertiary arylamines comprises coupling reaction between arynes and N,N-dimethyl aniline compounds in presence of 18-crown-6, KF and THF.
Synthesis of Bidentate Nitrogen Ligands by Rh-Catalyzed C–H Annulation and Their Application to Pd-Catalyzed Aerobic C–H Alkenylation
作者:Hyun Tae Kim、Eunsu Kang、Minkyu Kim、Jung Min Joo
DOI:10.1021/acs.orglett.1c01040
日期:2021.5.7
A new class of bidentate ligands was prepared by a modular approach involving Rh-catalyzedC–H annulation reactions. The resulting conformationally constrained ligands enabled the Pd-catalyzed C–H alkenylation at electron-rich and sterically less hindered positions of electron-rich arenes while promoting the facile oxidation of Pd(0) intermediates by oxygen. This newly introduced ligand class is complementary