Copper-Catalyzed Hydroxylation of (Hetero)aryl Halides under Mild Conditions
作者:Shanghua Xia、Lu Gan、Kailiang Wang、Zheng Li、Dawei Ma
DOI:10.1021/jacs.6b08114
日期:2016.10.19
powerful catalytic system for hydroxylation of (hetero)arylhalides. A wide range of (hetero)aryl chlorides bearing either electron-donating or -withdrawing groups proceeded well at 130 °C, delivering the corresponding phenols and hydroxylated heteroarenes in good to excellent yields. When more reactive (hetero)aryl bromides and iodides were employed, the hydroxylation reactions completed at relatively
Discovery of <i>N</i>-(Naphthalen-1-yl)-<i>N</i>′-alkyl Oxalamide Ligands Enables Cu-Catalyzed Aryl Amination with High Turnovers
作者:Jie Gao、Subhajit Bhunia、Kailiang Wang、Lu Gan、Shanghua Xia、Dawei Ma
DOI:10.1021/acs.orglett.7b00901
日期:2017.6.2
A Class of N-(naphthalen-1-yl)-N'-alkyl oxalamides have been proven to be powerful ligands, making a coupling reaction of (hetero)aryl iodides with primary amines proceed at 50 degrees C with only 0.01 mol % of Cu2O and ligand as well as a coupling reaction of (hetero)aryl bromides with primary amines and ammonia at 80 degrees C with only 0.1 mol % of Cu2O and ligand. A wide range of coupling partners work well under these conditions thereby providing an easy to operate method for preparing (hetero)atyl amines.
Synthesis of Santiagonamine
作者:Michael D. Markey、Ying Fu、T. Ross Kelly
DOI:10.1021/ol0711974
日期:2007.8.1
The first total synthesis of santiagonamine (1) is achieved in 12 steps from isovanillin. A palladium-catalyzed Ullmann cross-coupling reaction and a photocyclization are the key steps in the synthesis.
[EN] BETA-3 ADRENOCEPTOR AGONISTS<br/>[FR] AGONISTES DU RECEPTEUR BETA-3 ADRENERGIQUE
申请人:GLAXO GROUP LTD
公开号:WO2001042217A1
公开(公告)日:2001-06-14
The following compounds: 3'-[[2R-[[2-(3-chlorophenyl)-2R-hydroxyethyl]amino]propyl]amino]-[1,1'-biphenyl]-3-carboxylic acid; 6-[3-[[2R-[[2-(3-chlorophenyl)-2R-hydroxyethyl]amino]propyl]amino]phenyl]-2-pyridinecarboxylic acid; (R)-3-[3-[[2-(3-chlorophenyl)-2-hydroxyethyl]amino]ethyl]amino]phenyl]-4-pyridinecarboxylic acid; 3-[3-[[2R-[[2-(3-chlorophenyl)-2R-hydroxyethyl]amino]propyl]amino]phenyl]-4-pyridinecarboxylic acid; (R)-3-[3-[[2-(3-chlorophenyl)-2-hydroxyethyl]amino]ethyl]amino]phenyl]-2-pyridinecarboxylic acid; 3-[3-[[2R-[[2-(3-chlorophenyl)-2R-hydroxyethyl]amino]proyl]amino]phenyl]-2-pyridinecarboxylic acid; and pharmaceutically acceptable derivatives thereof are disclosed. These compounds are useful as agonist for human beta-3 adrenoceptor.