Transition-Metal-Free Addition of Acetylenes to Ketimines: the First Base-Catalyzed Ethynylation of the C=N Bond

被引:30
|
作者
Bidusenko, Ivan A. [1 ]
Schmidt, Elena Yu [1 ]
Ushakov, Igor A. [1 ]
Trofimov, Boris A. [1 ]
机构
[1] Russian Acad Sci, Siberian Branch, AE Favorsky Irkutsk Inst Chem, 1 Favorsky Str, Irkutsk 664033, Russia
关键词
Ketimines; Acetylenes; Propargylamines; Superbases; Ethynylation; MULTIFUNCTIONAL DRUGS; COUPLING REACTION; PROPARGYLAMINE; ALKYNE; SINGLE; A(3); NANOPARTICLE; DERIVATIVES; ALZHEIMERS; ALDEHYDES;
D O I
10.1002/ejoc.201800850
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A one-pot transition metal-free synthesis of propargylamines in good to excellent yield from ketone-derived imines and aryl- and hetarylacetylenes in the presence of KOBut/DMSO superbase system (40 degrees C, 10 min) has been developed. The reaction involves a nucleophilic addition of acetylenic carbanions to the C=N bond, thus for the first time featuring the aza-Favorsky reaction.
引用
收藏
页码:4845 / 4849
页数:5
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