The oxidation of the alpha-carbon of amines in hydrothermal condition: an alternative synthetic route of compounds containing amide bond

被引:2
|
作者
Bai, Xueyin [1 ]
Liu, Ziwei [1 ]
Ye, Kaiqi [2 ]
Wang, Yu [1 ]
Zhang, Xianlong [1 ]
Yue, Huijuan [1 ]
Tian, Ge [1 ]
Feng, Shouhua [1 ]
机构
[1] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
[2] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
Tertiary amines; Oxidation; Amides; Hydrothermal condition; Radical reaction; CHEMICAL EVOLUTION; ORGANIC-COMPOUNDS; ACIDS; DIOXIDE; ORIGIN; TRIETHYLAMINE; PEPTIDES; SYSTEMS; LIFE;
D O I
10.1016/j.tetlet.2013.11.005
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Here we report experimental evidence for the simple synthesis of N,N-diethylhydroxylamine and an amide bond formation reaction from oxidation of the alpha-carbon of tertiary amines by the reaction of triethylamine and hydrogen peroxide in hydrothermal conditions. It is proved that 120 degrees C is a turning point: when the temperature is lower than that, the main product is N,N-diethylhydroxylamine as a result of a cope rearrangement reaction mechanism; on the contrary, the product is more complex and the main products are amides via a radical chain mechanism involving three steps: initiation, propagation, and oxidation, followed by decarbonylation and electrocyclization because the radical is easier to form under high temperature. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:319 / 321
页数:3
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