Single-Site Cobalt-Catalyst Ligated with Pyridylimine-Functionalized Metal–Organic Frameworks for Arene and Benzylic Borylation
作者:Rajashree Newar、Wahida Begum、Neha Antil、Sakshi Shukla、Ajay Kumar、Naved Akhtar、Balendra、Kuntal Manna
DOI:10.1021/acs.inorgchem.0c00747
日期:2020.8.3
also significantly more robust and active than its homogeneous control, highlighting the beneficial effect of active-site isolation within the MOF framework that prevents intermolecular decomposition. The experimental and computational studies suggested (pyrim•−)CoI(THF) as the activecatalytic species within the MOF, which undergoes a mechanistic pathway of oxidative addition, turnover limiting σ-bond
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
Double N,B-Type Bidentate Boryl Ligands Enabling a Highly Active Iridium Catalyst for C–H Borylation
作者:Guanghui Wang、Liang Xu、Pengfei Li
DOI:10.1021/jacs.5b05252
日期:2015.7.1
promise in catalysis due to their very high electron-donating property. In this communication double N,B-type boryl anions were designed as bidentate ligands to promote an sp(2) C-H borylation reaction. A symmetric pyridine-containing tetraaminodiborane(4) compound (1) was readily prepared as the ligand precursor that could be used, in combination with [Ir(OMe)(COD)]2, to in situ generate a highly active
The present invention relates to the use of novel pyrrolopyrazine derivatives of Formula I,
wherein the variables are defined as described herein, which inhibit JAK and SYK and are useful for the treatment of auto-immune and inflammatory diseases.
The present invention relates to the use of novel pyrrolopyrazine derivatives of Formula I,
wherein the variables are defined as described herein, which inhibit JAK and SYK and are useful for the treatment of auto-immune and inflammatory diseases.