Dimethylformamide → HCID 12274195、化合物
反応式
[C-]#N.[K+].Cl[CH2:5][C:6]1[CH:7]=[CH:8][C:9]2[O:18][C:13]3=[N:14][CH:15]=[CH:16][CH:17]=[C:12]3[CH2:11][C:10]=2[CH:19]=1.[CH3:20][N:21](C)C=O>O>[N:14]1[CH:15]=[CH:16][CH:17]=[C:12]2[CH2:11][C:10]3[CH:19]=[C:6]([CH2:5][C:20]#[N:21])[CH:7]=[CH:8][C:9]=3[O:18][C:13]=12参加物
5
実験手順
A solution of 7.8 g of potassium cyanide in 20 ml of water is added dropwise to a mixture of 23 g of 7-chloromethyl-5H-[1]benzopyrano[2,3-b]-pyridine and 200 ml of dimethylformamide, and the whole mixture is allowed to stand at 55°-60°C for 2 hours. The reaction mixture is poured into a large amount of water, and the crystalline precipitate is filtered off, washed with water and recrystallized from aqueous dioxane to give 20 g of 5H-[1]-benzopyrano[2,3-b]pyridin-7-yl-acetonitrile melting at 166°-167°C.
後処理
- filtrationthe crystalline precipitate is filtered off
- washwashed with water
- customrecrystallized from aqueous dioxane
出典と根拠
- ORDレコード
- ord-b56307b9f6a447f6ba371e23969ce443
- 出典データセット
- uspto-grants-1976_08
- 特許番号
- US03974168
反応ノート
読み込み中…