Methyl Isobutyl Ketone → 1-{1-[3-(1H-benzimidazol-1-yl)propyl]-4-piperidinyl}-5-chloro-1,3-dihydro-2H-benzimidazol-2-one

HRID 46906

반응식

HRID 46906 반응식
Cl[CH2:2][CH2:3][CH2:4][N:5]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[N:7]=[CH:6]1.[Cl:14][C:15]1[CH:30]=[CH:29][C:18]2[N:19]([CH:23]3[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]3)[C:20](=[O:22])[NH:21][C:17]=2[CH:16]=1.C(=O)([O-])[O-].[Na+].[Na+].CC(C)CC(=O)C>O>[N:5]1([CH2:4][CH2:3][CH2:2][N:26]2[CH2:25][CH2:24][CH:23]([N:19]3[C:18]4[CH:29]=[CH:30][C:15]([Cl:14])=[CH:16][C:17]=4[NH:21][C:20]3=[O:22])[CH2:28][CH2:27]2)[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[N:7]=[CH:6]1

참가 물질

6

반응물 4

HCID 7909Methyl Isobutyl KetoneHCID 10340Sodium CarbonateHCID 1046075-Chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-oneHCID 131055171-(3-Chloropropyl)-1H-benzimidazole

생성물 1

HCID 203855791-{1-[3-(1H-benzimidazol-1-yl)propyl]-4-piperidinyl}-5-chloro-1,3-dihydro-2H-benzimidazol-2-one수율 14%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

A mixture of 9 parts of 1-(3-chloropropyl)-1H-benzimidazole, 10 parts of 5-chloro-1,3-dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one, 7.4 parts of sodium carbonate and 200 parts of 4-methyl-2-pentanone is stirred and refluxed overnight. The reaction mixture is cooled, water is added and the layers are separated. The organic phase is dried, filtered and evaporated. The residue is crystallized from 4-methyl-2-pentanone, yielding 2.9 parts (14%) of 1-{1-[3-(1H-benzimidazol-1-yl)propyl]-4-piperidinyl}-5-chloro-1,3-dihydro-2H-benzimidazol-2-one; mp. 224° C.

후처리

  1. temperaturerefluxed overnight
  2. temperatureThe reaction mixture is cooled
  3. customthe layers are separated
  4. customThe organic phase is dried
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue is crystallized from 4-methyl-2-pentanone

출처 및 근거

ORD 기록
ord-e14ae101c17d401ab38a545c8ba86135
출처 데이터셋
uspto-grants-1979_11
특허 번호
US04175129

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