Acetic Acid → 2-(2-Nitro-1-propen-1-yl)thiophene

反応式

C([C:3]1[CH:7]=[CH:6][S:5][CH:4]=1)=O.[N+:8]([CH2:11][CH3:12])([O-:10])=[O:9].[CH2:13](N)CCC.C(O)(=O)C>>[N+:8]([C:11]([CH3:13])=[CH:12][C:6]1[S:5][CH:4]=[CH:3][CH:7]=1)([O-:10])=[O:9]

参加物

反応物 4

HCID 176Acetic Acid

HCID 6587Nitroethane

HCID 8007Butylamine

HCID 681353-Thiophenecarboxaldehyde

生成物 1

HCID 2382342-(2-Nitro-1-propen-1-yl)thiophene

反応条件

温度: 80 °C

実験手順

5.0 g (44.6 mmol) 3-formylthiophene are dissolved together with 8.9 ml (124.8 mmol) nitroethane, 5.3 ml (53.5 mmol) butylamine in 25.1 ml glacial acetic acid (454.7 mmol) and heated to 80° C. After two hours the mixture is cooled and the precipitate formed is suction filtered and washed with copious amounts of water. The crude product thus obtained is dissolved in ethyl acetate, dried on sodium sulphate and evaporated down i. vac.