23761-52-6Relevant articles and documents
Elemental Sulfur-Promoted Aerobic Dehydrogenative Aromatization of Cyclohexanones with Amines
Wang, Zhen,Li, Cheng,Huang, Huawen,Deng, Guo-Jun
, p. 9415 - 9423 (2020/08/14)
An elemental sulfur-promoted aerobic dehydrogenation system for the access to N,N′-dialkyl-o-phenylenediamines and N-substituted 2-naphthylamines is reported herein. Readily available cyclohexanones and amines (especially alkylamines) are transformed smoo
Aerobic oxidative homocoupling of aryl amines using heterogeneous rhodium catalysts
Matsumoto, Kenji,Dougomori, Kento,Tachikawa, Shohei,Ishii, Takanori,Shindo, Mitsuru
supporting information, p. 4754 - 4757 (2015/04/22)
The first heterogeneous catalyzed oxidative coupling of aryl amines is reported. Aryl amines were dimerized at room temperature under air using a heterogeneous Rh/C catalyst in the presence of acids. By choosing a suitable acidic solvent, biaryl compounds and carbazoles were selectively prepared in good yields. This reaction is operationally simple and provides an effi cient synthetic methodology for the preparation of biaryl diamines via oxidative C - H activation.
Zinc-promoted, iridium catalyzed reductive alkylation of primary amines with aliphatic ketones in aqueous medium
da Silva, Renato A.,Bieber, Lothar W.
scheme or table, p. 689 - 691 (2010/04/02)
The reductive alkylation of primary aromatic and aliphatic amines 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 via low-valent iridium hydride species is proposed.