Ammonium Chloride → HCID 15341803, 화합물

HRID 1033631노트

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HRID 1033631 반응식
[OH:1][C:2]1[C:11]([CH2:12][CH:13]=[CH2:14])=[C:10]([OH:15])[CH:9]=[CH:8][C:3]=1[C:4](OC)=[O:5].[Cl-].[NH4+:17]>C(O)C>[OH:1][C:2]1[C:11]([CH2:12][CH:13]=[CH2:14])=[C:10]([OH:15])[CH:9]=[CH:8][C:3]=1[C:4]([NH2:17])=[O:5]

참가 물질

4

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온도
50 °C

실험 절차

Methyl 2,4-dihydroxy-3-(2-propenyl)benzoate (4.4 g) was added to a mixture of about 10 to 15 ml of saturated ammonium chloride solution and 2 to 3 ml of ethanol. The reaction mixture was stirred overnight at 50° C. The reaction mixture was extracted five times with ethyl acetate, and the organic layer was concentrated under vacuum. The product was crystallized and recrystallized from chloroform. Subsequent chromatography of the precipitated product on a 25 g silica gel column with 40% ethyl acetate/hexane as eluant gave the pure product.

후처리

  1. extractionThe reaction mixture was extracted five times with ethyl acetate
  2. concentrationthe organic layer was concentrated under vacuum
  3. customThe product was crystallized
  4. customrecrystallized from chloroform
  5. customSubsequent chromatography of the precipitated product on a 25 g silica gel column with 40% ethyl acetate/hexane as eluant gave the pure product

출처 및 근거

ORD 기록
ord-474898591a7246b684160e620283ef73
출처 데이터셋
uspto-grants-1994_05
특허 번호
US05310951

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