Highly Selective and Divergent Acyl and Aryl Cross-Couplings of Amides via Ir-Catalyzed C–H Borylation/N–C(O) Activation
作者:Pengcheng Gao、Michal Szostak
DOI:10.1021/acs.orglett.0c02105
日期:2020.8.7
Herein, we demonstrate that amides can be readily coupled with nonactivated arenes via sequential Ir-catalyzed C–H borylation/N–C(O) activation. This methodology provides facile access to biaryl ketones and biaryls by the sterically controlled Ir-catalyzed C–H borylation and divergent acyl and decarbonylative amide N–C(O) and C–C activation. The methodology diverts the traditional acylation and arylation
A compound of formula (I), or a pharmaceutical salt thereof.
式(I)的化合物,或其药用盐。
Cyanation of Arenes via Iridium-Catalyzed Borylation
作者:Carl W. Liskey、Xuebin Liao、John F. Hartwig
DOI:10.1021/ja104442v
日期:2010.8.25
We report a method to conduct one-pot meta cyanation of arenes by iridium-catalyzed C-H borylation and copper-mediated cyanation of the resulting arylboronate esters. This process relies on a method to conduct the cyanation of arylboronic esters, and conditions for this newtransformation are reported. Conditions for the copper-mediated cyanation of arylboronic acids are also reported. By the resulting
Sterically Controlled Iodination of Arenes via Iridium-Catalyzed C–H Borylation
作者:Benjamin M. Partridge、John F. Hartwig
DOI:10.1021/ol303164h
日期:2013.1.4
to prepare aryl and heteroaryl iodides by sequential C–H borylation and iodination is reported. The regioselectivity of this process is controlled by steric effects on the C–H borylation step and is complementary to existing methods to form aryl iodides. The iodination of boronic esters has potential for the synthesis of radiolabeled aryl iodides, as demonstrated by the concise synthesis of a potential
A palladium-catalyzed oxidative cross-coupling reaction between aryl pinacol boronates and H-phosphonates in ethanol
作者:Te-Hsuan Chen、Daggula Mallikarjuna Reddy、Chin-Fa Lee
DOI:10.1039/c7ra04619g
日期:——
The first successful oxidative coupling reaction of aryl pinacol boronic esters with H-phosphonates to deliver aryl phosphorous compounds is reported herein. These reactions between aryl boronic reagents and H-phosphonates were carried out synergistically using a Pd catalyst, additive and oxidant. Without using bases and ligands, phosphorylation was accomplished in an environmentally-friendly manner