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

HRID 1060697

반응식

HRID 1060697 반응식
[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

참가 물질

6

반응물 4

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

생성물 1

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

시약·촉매·용매 1

HCID 8150Diglyme용매2회

반응 조건

온도
90 °C

실험 절차

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.

후처리

  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)

출처 및 근거

ORD 기록
ord-d1ae574a9dd0470f85a2033cede6150b
출처 데이터셋
uspto-grants-2003_02
특허 번호
US06525064B1

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