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Water → 4-(2-Chloro-1,1,2-trifluoroethoxy)-2,5-dichlorobenzenamine

HRID 463453
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HRID 463453 반응식
Cl.[NH2:2][C:3]1[C:8]([Cl:9])=[CH:7][C:6]([OH:10])=[C:5]([Cl:11])[CH:4]=1.[OH-].[K+].[Cl:14][C:15]([F:19])=[C:16]([F:18])[F:17].O>CN(C)C=O>[Cl:14][CH:15]([F:19])[C:16]([F:18])([F:17])[O:10][C:6]1[C:5]([Cl:11])=[CH:4][C:3]([NH2:2])=[C:8]([Cl:9])[CH:7]=1
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참가 물질

6

반응물 4

HCID 962WaterHCID 6594ChlorotrifluoroethyleneHCID 14797Potassium HydroxideHCID 135172884-Amino-2,5-dichlorophenol hydrochloride

생성물 1

HCID 135172904-(2-Chloro-1,1,2-trifluoroethoxy)-2,5-dichlorobenzenamine수율 59%

시약·촉매·용매 1

HCID 6228
Dimethylformamide
용매

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온도
90 °C

실험 절차

A solution of 25 g (0.12 mole) of 4-amino-2,5-dichlorophenol hydrochloride in 200 ml dimethylformamide was placed in a 500 ml 3-necked round bottom flask, fitted with a mechanical stirrer, thermometer, reflux condenser and sparger, and 13.4 g (0.24 mole) of potassium hydroxide pellets ground to powder were added. The mixture was heated to 90° C. with stirring under a nitrogen blanket. Then 21 g (0.18 mole) chlorotrifluoroethylene was bubbled in, while stirring and heating at 90° to 100° C., in about 1/2 hour. Stirring was continued for 5 minutes, the mixture cooled in an ice water bath, 500 ml of water were added and the resulting mixture extracted with 250 ml methylene dichloride and then 100 ml methylene dichloride. The extracts were combined, washed with 250 ml water and the methylene dichloride removed in a rotary evaporator. The residue was distilled through a 1"×10" Vigreaux. The cut from 110° to 120° C. at 2 mm pressure was a light tan liquid. Weight 21 grams. Yield was 59 percent. NMR analysis verified structure.

후처리

  1. customfitted with a mechanical stirrer
  2. temperaturethermometer, reflux condenser
  3. stirringwhile stirring
  4. temperatureheating at 90° to 100° C., in about 1/2 hour
  5. stirringStirring
  6. temperaturethe mixture cooled in an ice water bath
  7. extractionthe resulting mixture extracted with 250 ml methylene dichloride
  8. washwashed with 250 ml water
  9. customthe methylene dichloride removed in a rotary evaporator
  10. distillationThe residue was distilled through a 1"×10" Vigreaux
  11. customfrom 110° to 120° C.

출처 및 근거

ORD 기록
ord-2a1053070b35474995a2c4f326db83c2
출처 데이터셋
uspto-grants-1985_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04518804

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