2-Amino-5-iodo-3-methylbenzoic Acid → 2-Amino-5-cyano-3-methylbenzoic acid
反応式
[NH2:1][C:2]1[C:10]([CH3:11])=[CH:9][C:8](I)=[CH:7][C:3]=1[C:4]([OH:6])=[O:5].[Cu](C#N)[C:14]#[N:15]>CN(C)C=O>[NH2:1][C:2]1[C:10]([CH3:11])=[CH:9][C:8]([C:14]#[N:15])=[CH:7][C:3]=1[C:4]([OH:6])=[O:5]参加物
4
反応条件
- 温度
- 150 °C
実験手順
A mixture of 1.0 g of 2-amino-5-iodo-3-methylbenzoic acid, 0.45 g of copper cyanide and 10 ml of N,N-dimethylformamide was stirred at 150° C. for 9 hours. The reaction mixture was concentrated under reduced pressure. Into the residue, 20 ml of water and 2 ml of ethylenediamine were poured, and the mixture was stirred at room temperature for 1 hour. After the reaction mixture was filtered, the filtrate was adjusted to around pH 5 by an addition of concentrated hydrochloric acid, and then extracted with ethyl acetate three times. The combined organic layer was dried over sodium sulfate, and concentrated under reduced pressure to obtain 0.40 g of 2-amino-5-cyano-3-methylbenzoic acid of the formula: