Elemental Sulfur-Promoted Aerobic Dehydrogenative Aromatization of Cyclohexanones with Amines
作者:Zhen Wang、Cheng Li、Huawen Huang、Guo-Jun Deng
DOI:10.1021/acs.joc.0c01122
日期:2020.7.17
2-naphthylamines is reported herein. Readily available cyclohexanones and amines (especially alkylamines) are transformed smoothly to target products. Aromatic amines can be achieved from all aliphatic reagents under aerobic metal-free reaction conditions. Control reactions show that the combinational use of elemental sulfur and molecular oxygen is exceptionally essential for this dehydrogenative aromatizaiton
Loevenich et al., Chemische Berichte, 1929, vol. 62, p. 3095
作者:Loevenich et al.
DOI:——
日期:——
Zinc-promoted, iridium catalyzed reductive alkylation of primary amines with aliphatic ketones in aqueous medium
作者:Renato A. da Silva、Lothar W. Bieber
DOI:10.1016/j.tetlet.2009.11.107
日期:2010.1
The reductive alkylation of primary aromatic and aliphaticamines with aliphatic ketones has been achieved in aqueous acidic medium using commercially available, non-activated zinc dust catalyzed by a very small quantity of iridium bromide. Anilines react well in aqueous formic acid, whereas monoalkylamines require 1,4-dioxane as a co-solvent and sulfuric acid as the proton source. A plausible mechanism