Hydrochloric Acid → HCID 54230354, 화합물

HRID 437812노트

반응식

HRID 437812 반응식
[OH:1]O.[F:3][C:4]1[CH:25]=[CH:24][C:7]([O:8][C:9]2[CH:14]=[CH:13][C:12]([N+:15]([O-:17])=[O:16])=[CH:11][C:10]=2[CH2:18][C:19](=[O:23])C(O)=O)=[CH:6][CH:5]=1.Cl>[OH-].[Na+]>[F:3][C:4]1[CH:5]=[CH:6][C:7]([O:8][C:9]2[CH:14]=[CH:13][C:12]([N+:15]([O-:17])=[O:16])=[CH:11][C:10]=2[CH2:18][C:19]([OH:23])=[O:1])=[CH:24][CH:25]=1

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 784Hydrogen PeroxideHCID 214270062-(4-Fluorophenoxy)-5-nitro-α-oxobenzenepropanoic acid

생성물 1

HCID 54230354HCID 54230354, 화합물

시약·촉매·용매 1

HCID 14798Sodium Hydroxide용매

반응 조건

온도
25 °C

실험 절차

560 Ml. of a 10% aqueous solution of hydrogen peroxide are added dropwise at 0° over a period of 75 minutes to a solution of 142 g. of 2 -(4-fluoro-phenoxy)-5-nitro-phenylpyruvic acid in 2.23 liters of 10% sodium hydroxide solution cooled to 0° C. The mixture is subsequently stirred for 3 hours at 25° C. and then acidified with 500 ml. of concentrated hydrochloric acid with cooling. This mixture is extracted twice with methylene chloride. The methylene chloride solutions are washed with water, dried over sodium sulfate and concentrated in vacuo. The residue is crystallized from benzene/hexane, and there is obtained 2-(4-fluoro-phenoxy)-5-nitro-phenylacetic acid having a melting point of 129°-130° C.

후처리

  1. extractionThis mixture is extracted twice with methylene chloride
  2. washThe methylene chloride solutions are washed with water
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue is crystallized from benzene/hexane

출처 및 근거

ORD 기록
ord-d1ffb0d0c27c4c8d98b312e150992ccc
출처 데이터셋
uspto-grants-1977_06
특허 번호
US04032525

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