Water → Tert-butyl 4-[[2-fluoro-4-(1,1,2,2,2-pentafluoroethyl)benzoyl]amino]benzoate

HRID 1484186노트

반응식

HRID 1484186 반응식
[F:1][C:2]1[CH:10]=[C:9]([C:11]([F:17])([F:16])[C:12]([F:15])([F:14])[F:13])[CH:8]=[CH:7][C:3]=1[C:4](Cl)=[O:5].[NH2:18][C:19]1[CH:31]=[CH:30][C:22]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])=[CH:21][CH:20]=1.N1C=CC=CC=1.O>ClCCl>[F:1][C:2]1[CH:10]=[C:9]([C:11]([F:17])([F:16])[C:12]([F:15])([F:14])[F:13])[CH:8]=[CH:7][C:3]=1[C:4]([NH:18][C:19]1[CH:31]=[CH:30][C:22]([C:23]([O:25][C:26]([CH3:27])([CH3:28])[CH3:29])=[O:24])=[CH:21][CH:20]=1)=[O:5]

참가 물질

6

반응물 4

HCID 962WaterHCID 1049PyridineHCID 233272Benzoic acid, 4-amino-, 1,1-dimethylethyl esterHCID 90315066HCID 90315066, 화합물

생성물 1

HCID 90314955Tert-butyl 4-[[2-fluoro-4-(1,1,2,2,2-pentafluoroethyl)benzoyl]amino]benzoate수율 97.3%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

A solution of 2-fluoro-4-(1,1,2,2,2-pentafluoroethyl)benzoyl chloride (0.46 g, 1.66 mmol) in dichloromethane (6.34 mL) was added dropwise to a mixture of tert-butyl 4-aminobenzoate (321.4 mg, 1.66 mmol), pyridine (403.5 μL, 4.99 mmol) and dichloromethane (4.2 mL) at 0° C. The reaction was stirred and allowed to warm up to room temperature over 18 hours. To this reaction, water (5 mL) was added. The two layers were separated. The organic layer was washed with water (2×10 mL), dried over Na2SO4, filtered and evaporated under reduced pressure to yield tert-butyl 4-[[2-fluoro-4-(1,1,2,2,2-pentafluoroethyl)benzoyl]amino]benzoate (0.7 g, 97%) that was used in the next step without further purification. ESI-MS m/z calc. 433.11. found 434.3 (M+1)+; Retention time: 2.27 minutes (3 minutes run). 1H NMR (400 MHz, DMSO-d6) δ 10.96 (s, 1H), 7.99-7.90 (m, 3H), 7.90-7.80 (m, 3H), 7.71 (dd, J=8.1, 1.7 Hz, 1H), 1.55 (s, 9H) ppm.

후처리

  1. additionwas added
  2. customThe two layers were separated
  3. washThe organic layer was washed with water (2×10 mL)
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. customevaporated under reduced pressure

출처 및 근거

ORD 기록
ord-37deda571e064f6ab504bfe262b5189b
출처 데이터셋
uspto-grants-2016_08
특허 번호
US09421196B2

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