Selective N-Alkylation of Amines with Alcohols by Using Non-Metal-Based Acid-Base Cooperative Catalysis
作者:Ya Du、Shunsuke Oishi、Susumu Saito
DOI:10.1002/chem.201102446
日期:2011.10.24
straightforward method for the selective N‐mono‐ and dialkylation of amines with alcohols by means of non‐metal‐based catalysis promoted by TAPC is reported (see scheme). Selectivity of the N‐mono‐ and dialkylation, substrate scope and functional‐group tolerance are highlighted with respect to each amine (1° and 2°; aromatic and aliphatic) and alcohol (1°, 2° and 3°; benzylic and aliphatic) component.
and green method for the selectivesynthesis of tertiary amines has been developed that involves iridium-catalyzed alkylation of various primary amines with aromatic or aliphatic alcohols. Notably, the catalytic protocol enables this transformation in the absence of additional base and solvent. Furthermore, the alkylation of nitrobenzene with primary alcohol to tertiary amine has also been achieved by
Concise synthesis of aromatic tertiary amines via a double Petasis–borono Mannich reaction of aromatic amines, formaldehyde, and organoboronic acids
作者:Jiayi Wang、Pinzhen Li、Qiaoying Shen、Gonghua Song
DOI:10.1016/j.tetlet.2014.03.131
日期:2014.7
A simple and efficient strategy to construct aromatictertiary amines via a double Petasis–borono Mannich reaction of aromatic amines, formaldehyde, and organoboronic acids has been developed. The transformation provides a useful method for the synthesis of amine derivatives.
Metal-free photoredox-catalyzed direct α-oxygenation of <i>N</i>,<i>N</i>-dibenzylanilines to imides under visible light
作者:Nalladhambi Neerathilingam、Ramasamy Anandhan
DOI:10.1039/d2ra00585a
日期:——
An efficient synthesis of imides using metal-free photoredox-catalyzed direct α-oxygenation of N,N′-disubstituted anilines in the presence of 9-mesityl-10-methylacridinium [Acr+-Mes]BF4 as a photoredox catalyst and molecular oxygen as a green oxidant under visible light was developed. This photochemical approach offered operational simplicity, high atom economy with a low E-factor, and functional group
Ruthenium-Catalyzed Tertiary Amine Formation from Nitroarenes and Alcohols
作者:Chao Feng、Yong Liu、Shengming Peng、Qi Shuai、Guojun Deng、Chao-Jun Li
DOI:10.1021/ol1020527
日期:2010.11.5
A highly selective ruthenium-catalyzed C-N bond formation was developed by using the hydrogen-borrowing strategy. Various tertiary amines were obtained efficiently from nitroarenes and primary alcohols. The reaction tolerates a wide range of functionalities. A tentative mechanism was proposed for this direct amination reaction of alcohols with nitroarenes.