Dimethylformamide → 1-(4-Chloro-2-nitrophenyl)piperidine

HRID 2195653

반응식

HRID 2195653 반응식
[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.CN(C)C=O.Cl[C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=1[N+:20]([O-:22])=[O:21]>O>[Cl:19][C:16]1[CH:17]=[CH:18][C:13]([N:1]2[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]2)=[C:14]([N+:20]([O-:22])=[O:21])[CH:15]=1

참가 물질

5

반응물 3

HCID 6228DimethylformamideHCID 69772,5-DichloronitrobenzeneHCID 8082Piperidine

생성물 1

HCID 2853181-(4-Chloro-2-nitrophenyl)piperidine수율 96.4%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Piperidine (660 μl, 6.66 mmol, commercially available product) was added at room temperature to an N,N-dimethylformamide (DMF; 1 ml) solution of 1,4-dichloro-2-nitrobenzene (390 mg, 2.03 mmol, commercially available product). The resulting mixture was stirred for 18.5 hours. Water was added to the mixture, and the resulting mixture was extracted three times with ethyl acetate. The obtained organic layer was washed with a saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (30 g, hexane/ethyl acetate=10/1). Thus, 1-(4-chloro-2-nitrophenyl)piperidine (471 mg, 96.4%) was yielded as an orange-colored oily material.

후처리

  1. extractionthe resulting mixture was extracted three times with ethyl acetate
  2. washThe obtained organic layer was washed with a saturated sodium chloride solution
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (30 g, hexane/ethyl acetate=10/1)

출처 및 근거

ORD 기록
ord-6caaefe8dfb1402987859e4df68461d6
출처 데이터셋
uspto-grants-2012_12
특허 번호
US08338362B2

연결된 노트

불러오는 중…