Rhodium(NHC)-Catalyzed O-Arylation of Aryl Bromides
摘要:
The first example of the rhodium-catalyzed O-arylation of aryl bromides is reported. While the right combination of rhodium species and N-heterocyclic carbene (NHC) offered an effective catalytic system enabling the arylation to proceed, the choice of NHC was determined to be most important. The developed O-arylation protocol has a wide range of substrate scope, high functional group tolerance, and flexibility allowing a complementary route to either N- or O-arylation depending on the choice of NHC.
ARYL AMINE SUBSTITUTED PYRIMIDINE AND QUINAZOLINE AND THEIR USE AS ANTICANER DRUGS
申请人:National Taiwan University
公开号:US20140080848A1
公开(公告)日:2014-03-20
A series of mono- and di-substituted quinazoline and pyrimidine derivatives based on the skeleton of erlotinib (an EGFR inhibitor) were synthesized and their bioactivities against hepatocellular carcinoma and human lung adenocarcinoma were evaluated.
Copper-catalyzed <i>O</i>-arylation of phenols with diazonium salts
作者:Xin Fang、Chengning Qi、Xiangqian Cao、Zhi-Gang Ren、David James Young、Hong-Xi Li
DOI:10.1039/d3gc02541a
日期:——
It is well known that diazonium salts (ArN2+) react with phenols (Ar′OH) to give aryl diazoethers or diazo compounds, but their cross-coupling to exclusively access diaryl ethers is challenging. Herein we disclose the Cu-catalyzed etherification of phenols with aryl diazonium salts at room temperature, yielding diaryl ethers in moderate to excellent yields. The advantages of this protocol are mild
Rhodium(NHC)-Catalyzed <i>O</i>-Arylation of Aryl Bromides
作者:Hyun Jin Kim、Min Kim、Sukbok Chang
DOI:10.1021/ol200603c
日期:2011.5.6
The first example of the rhodium-catalyzed O-arylation of aryl bromides is reported. While the right combination of rhodium species and N-heterocyclic carbene (NHC) offered an effective catalytic system enabling the arylation to proceed, the choice of NHC was determined to be most important. The developed O-arylation protocol has a wide range of substrate scope, high functional group tolerance, and flexibility allowing a complementary route to either N- or O-arylation depending on the choice of NHC.
Discovery of Novel Isoxazoline Derivatives Containing Diaryl Ether against Fall Armyworms
作者:Di Feng、Shang Wu、Biaobiao Jiang、Siqi He、Yuqin Luo、Fangyi Li、Baoan Song、Runjiang Song
DOI:10.1021/acs.jafc.3c00824
日期:2023.5.10
frugiperda) with traditional insecticides. To solve this pending issue, a series of novel isoxazoline derivatives containing diaryl ether structures were designed and synthesized, and most of the target compounds exhibited excellent insecticidal activity. Based on the three-dimensional quantitativestructure–activityrelationship (3D-QSAR) model analysis, we further optimized the molecular structure with compound