A reaction to introduce the cyanoethyl group CNCH 2 CH 2 -. Organic compounds with active hydrogen (amines, alcohols, thiols, ketones, aldehydes, enamines, etc.) react with acrylonitrile in the presence of a base (caustic potassium KOH, amines) or a Lewis acid (AlCl 3 ), replacing the active hydrogen with a cyanoethyl group (equation (1)). CH 2 =CHCN+RH→RCH 2 CH 2 CN ……(1) This reaction can be regarded as the Michael addition of a nucleophilic reagent R - to acrylonitrile. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
シアノエチル基CNCH2CH2-を導入する反応。活性水素をもつ有機化合物(アミン,アルコール,チオール,ケトン,アルデヒド,エナミンなど)は塩基(苛性カリKOH,アミン)やルイス酸(AlCl3)などの存在下でアクリロニトリルと反応して,活性水素がシアノエチル基に置換される(式(1))。 CH2=CHCN+RH→RCH2CH2CN ……(1) この反応はアクリロニトリルに対する求核試薬R-のマイケル付加とみなすことができる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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