2-Aminothiazole → 1-(2-Phenoxyphenyl)-5-(thiazol-2-yl)biuret

HRID 598912

反応式

HRID 598912 の反応式
[O:1]([C:8]1[CH:14]=[CH:13][CH:12]=[CH:11][C:9]=1[NH2:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.[C:24](=[O:29])=[N:25][C:26](Cl)=[O:27].[NH2:30][C:31]1[S:32][CH:33]=[CH:34][N:35]=1>O1CCCC1>[O:1]([C:8]1[CH:14]=[CH:13][CH:12]=[CH:11][C:9]=1[NH:10][C:24]([NH:25][C:26]([NH:30][C:31]1[S:32][CH:33]=[CH:34][N:35]=1)=[O:27])=[O:29])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応条件

温度
-30 °C

実験手順

To a solution of 2-phenoxyaniline (0.46 g, 2.50 mmol) in tetrahydrofuran (20 ml) was added diisopropylethylamine (0.89 ml, 5.00 mmol) and the solution was cooled to −30° C., then N-(chlorocarbonyl)isocyanate (0.3 ml, 3.75 mmol) was slowly added. The mixture was then allowed to warm up to the room temperature during 30 min. 2-Aminothiazole (0.375 g, 3.75 mmol) was added to the reaction mixture and stirred at room temperature for 6 hours. The reaction mixture was concentrated under reduced pressure to afford crude product, which was purified by silica gel chromatography (hexanes:ethyl acetate from 80:20 to 30:70) to afford title compound (0.49 g, 55%) as pale yellow solid.

後処理

  1. temperatureto warm up to the room temperature during 30 min
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. customto afford crude product, which
  4. customwas purified by silica gel chromatography (hexanes:ethyl acetate from 80:20 to 30:70)

出典と根拠

ORDレコード
ord-3dac87a570b6488e8231d9879114e80b
出典データセット
uspto-grants-2011_03
特許番号
US07897628B2

関連ノート

読み込み中…