Water → Tert-butyl 2-[(2,3-dimethyl-5-nitro-6-phenoxypyridin-4-yl)amino]ethylcarbamate

HRID 1060697

反応式

HRID 1060697 の反応式
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[H-].[Na+].Cl[C:11]1[C:16]([N+:17]([O-:19])=[O:18])=[C:15]([NH:20][CH2:21][CH2:22][NH:23][C:24](=[O:30])[O:25][C:26]([CH3:29])([CH3:28])[CH3:27])[C:14]([CH3:31])=[C:13]([CH3:32])[N:12]=1.O>COCCOCCOC>[CH3:32][C:13]1[C:14]([CH3:31])=[C:15]([NH:20][CH2:21][CH2:22][NH:23][C:24](=[O:30])[O:25][C:26]([CH3:29])([CH3:28])[CH3:27])[C:16]([N+:17]([O-:19])=[O:18])=[C:11]([O:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[N:12]=1

参加物

6

反応物 4

HCID 962WaterHCID 996PhenolHCID 24758Sodium hydrideHCID 21973801Tert-butyl 2-[(2-chloro-5,6-dimethyl-3-nitropyridin-4-yl)amino]ethylcarbamate

生成物 1

HCID 21973823Tert-butyl 2-[(2,3-dimethyl-5-nitro-6-phenoxypyridin-4-yl)amino]ethylcarbamate収率 59.1%

試薬・触媒・溶媒 1

HCID 8150Diglyme溶媒2 回

反応条件

温度
90 °C

実験手順

Phenol (1.19 g, 12.6 mmol) was added in portions to a chilled (0° C.) suspension of sodium hydride (0.52 g of 60%, 13.1 mmol) in diglyme (4 mL). The reaction mixture was then stirred for 30 minutes. A warm solution of tert-butyl 2-[(2-chloro-5,6-dimethyl-3-nitropyridin-4-yl)amino]ethylcarbamate (3.0 g, 8.70 mmol) in diglyme (6 mL) was added and the reaction mixture was heated at 90° C. overnight. The reaction mixture was cooled and poured slowly into water (100 mL). The resulting tan solid was isolated by filtration, washed with water, dried and then recrystallized from isopropanol (25 mL) to provide 2.07 g of tert-butyl 2-[(2,3-dimethyl-5-nitro-6-phenoxypyridin-4-yl)amino]ethylcarbamate as white needles. The reaction was repeated using 66.5 g of starting material to provide 50.4 g of product as white needles, m.p. 158-160° C.

後処理

  1. temperaturea chilled
  2. temperatureThe reaction mixture was cooled
  3. customThe resulting tan solid was isolated by filtration
  4. washwashed with water
  5. customdried
  6. customrecrystallized from isopropanol (25 mL)

出典と根拠

ORDレコード
ord-d1ae574a9dd0470f85a2033cede6150b
出典データセット
uspto-grants-2003_02
特許番号
US06525064B1

関連ノート

読み込み中…