Piperazine → {5-[4-(3,4-dichloro-phenyl)-1H-imidazol-2-yl]-pyridin-2-yl}-piperazine

HRID 276772

반응식

HRID 276772 반응식
Cl[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:9][CH:10]=[C:11]([C:13]3[CH:18]=[CH:17][C:16]([Cl:19])=[C:15]([Cl:20])[CH:14]=3)[N:12]=2)=[CH:4][N:3]=1.[NH:21]1[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]1>CS(C)=O.[Cl-].[Na+].O>[Cl:20][C:15]1[CH:14]=[C:13]([C:11]2[N:12]=[C:8]([C:5]3[CH:6]=[CH:7][C:2]([N:21]4[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]4)=[N:3][CH:4]=3)[NH:9][CH:10]=2)[CH:18]=[CH:17][C:16]=1[Cl:19]

참가 물질

5

반응물 2

HCID 4837PiperazineHCID 178477975HCID 178477975, 화합물

생성물 1

HCID 178477952{5-[4-(3,4-dichloro-phenyl)-1H-imidazol-2-yl]-pyridin-2-yl}-piperazine수율 58.4%

시약·촉매·용매 2

HCID 679Dimethyl Sulfoxide용매HCID 57417360Sodium chloride; water용매

실험 절차

A solution of 2-Chloro-5-[4-(3,4-dichloro-phenyl)-1H-imidazol-2-yl]-pyridine (72.8 g) and piperazine (61.8 g) in DMSO (478 mL) was heated to 105 degrees 16 hours. The reaction mixture was cooled to room temperature and diluted with 2500 mL half-saturated brine. The resultant precipitate was collected by filtration and triturated with 2000 mL hot methanol. The solids were collected by filtration, the mother liquor was concentrated to about 100 mL, and the additional precipitate was collected and combined with the original solids to provide 1-{5-[4-(3,4-dichloro-phenyl)-1H-imidazol-2-yl]-pyridin-2-yl}-piperazine (49 g).

후처리

  1. filtrationThe resultant precipitate was collected by filtration
  2. customtriturated with 2000 mL hot methanol
  3. filtrationThe solids were collected by filtration
  4. concentrationthe mother liquor was concentrated to about 100 mL
  5. customthe additional precipitate was collected

출처 및 근거

ORD 기록
ord-4fafef1542514aaaa5e91a3b425443f3
출처 데이터셋
uspto-grants-2002_03
특허 번호
US06355635B1

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