One-pot Suzuki–Miyaura cross-coupling followed by reductive monoalkylation of the resulting nitro biaryl system utilizing Pd/C as catalyst
摘要:
Conditions for one-pot Suzuki-Miyaura cross-coupling between aryl boronic acids and bromo-nitrobenzene followed by reductive monoalkylation of the nitro functionality of the biaryl cross-coupling product utilizing hydrogen over Pd/C as the catalyst and aldehydes as alkylation agent are described. (C) 2013 Elsevier Ltd. All rights reserved.
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.