Dimethylformamide → 2-chloro-5,6-dimethyl-3-nitro-N-[2-(3-pyridin-3-ylpropoxy)ethyl]pyridin-4-amine

HRID 1352553노트

반응식

HRID 1352553 반응식
CN(C)C=O.[Cl:6][C:7]1[C:12]([N+:13]([O-:15])=[O:14])=[C:11](Cl)[C:10]([CH3:17])=[C:9]([CH3:18])[N:8]=1.[N:19]1[CH:24]=[CH:23][CH:22]=[C:21]([CH2:25][CH2:26][CH2:27][O:28][CH2:29][CH2:30][NH2:31])[CH:20]=1>C(N(CC)CC)C>[Cl:6][C:7]1[C:12]([N+:13]([O-:15])=[O:14])=[C:11]([NH:31][CH2:30][CH2:29][O:28][CH2:27][CH2:26][CH2:25][C:21]2[CH:20]=[N:19][CH:24]=[CH:23][CH:22]=2)[C:10]([CH3:17])=[C:9]([CH3:18])[N:8]=1

참가 물질

5

반응물 3

HCID 6228DimethylformamideHCID 121091232,4-Dichloro-5,6-dimethyl-3-nitropyridineHCID 219130212-(3-Pyridin-3-ylpropoxy)ethanamine

생성물 1

HCID 219140062-chloro-5,6-dimethyl-3-nitro-N-[2-(3-pyridin-3-ylpropoxy)ethyl]pyridin-4-amine

시약·촉매·용매 1

HCID 8471Triethylamine용매

반응 조건

온도
45 °C

실험 절차

Anhydrous N,N-dimethylformamide (200 ml), anhydrous triethylamine (12.1 ml), and 2,4-dichloro-5,6-dimethyl-3-nitropyridine (16.05 g) were combined and 2-(3-pyridin-3-ylpropoxy)ethylamine (14.4 g) was then added with stirring. The pale yellow reaction mixture was heated to 45° C. under a nitrogen atmosphere for 1 hour. HPLC analysis indicated that the reaction was sufficiently complete to proceed. The reaction mixture was allowed to cool and the solvent was removed under reduced pressure. The resulting oil was dissolved in ethyl acetate and washed twice: once with a saturated aqueous solution of ammonium chloride and once with water. The organic layer was then extracted 3 times with brine, dried with magnesium sulfate, and concentrated under reduced pressure. The product was passed through a silica gel column using 90/10 ethyl acetate/hexane as the eluant. The resulting oil was dried under vacuum at 60° C. for 2 hours. NMR analysis indicated sufficient purity for use of the product in the next step.

후처리

  1. temperatureto cool
  2. customthe solvent was removed under reduced pressure
  3. dissolutionThe resulting oil was dissolved in ethyl acetate
  4. washwashed twice
  5. extractionThe organic layer was then extracted 3 times with brine
  6. dry with materialdried with magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe resulting oil was dried under vacuum at 60° C. for 2 hours

출처 및 근거

ORD 기록
ord-fec8ccd2c1c4478993f1edc11aa6e7a8
출처 데이터셋
uspto-grants-2007_05
특허 번호
US07220758B2

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