1,1'-Thiocarbonyldiimidazole → HCID 14013074, compound

HRID 2309657Notes

Reaction equation

HRID 2309657 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=3[N:11]=[C:10]2[CH2:18][CH:19]2[CH2:24][CH2:23][N:22]([CH2:25][CH2:26][NH:27][C:28]3[C:29]([NH2:34])=[CH:30][CH:31]=[CH:32][CH:33]=3)[CH2:21][CH2:20]2)=[CH:4][CH:3]=1.[C:35](N1C=CN=C1)(N1C=CN=C1)=[S:36]>O1CCCC1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=3[N:11]=[C:10]2[CH2:18][CH:19]2[CH2:24][CH2:23][N:22]([CH2:25][CH2:26][N:27]3[C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][C:29]=4[NH:34][C:35]3=[S:36])[CH2:21][CH2:20]2)=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 802641,1'-ThiocarbonyldiimidazoleHCID 14518069HCID 14518069, compound

Product 1

HCID 14013074HCID 14013074, compoundYield 41.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 6 parts of N1 -[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-yl]methyl]-1-piperidinyl]ethyl]-1,2-benzenediamine, 2.7 parts of 1,1'-thiocarbonylbis[1H-imidazole] and 90 parts of tetrahydrofuran was stirred and refluxed for 1 hour. The reaction mixture was evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The oily residue was stirred in acetonitrile. The product was filtered off and crystallized from ethanol. The product was filtered off and dried, yielding 2.8 parts (41.5%) of 1-[2-[4-[[1-[(4-fluorophenyl)methyl]-1H-benzimidazol-2-yl]methyl]-1-piperidinyl]ethyl]-1,3-dihydro-2H-benzimidazole-2-thione; mp. 157.1° C. (493).

Workup

  1. temperaturerefluxed for 1 hour
  2. customThe reaction mixture was evaporated
  3. customThe residue was purified by column chromatography over silica gel using
  4. additiona mixture of trichloromethane and methanol (95:5 by volume) as eluent
  5. customThe pure fractions were collected
  6. customthe eluent was evaporated
  7. stirringThe oily residue was stirred in acetonitrile
  8. filtrationThe product was filtered off
  9. customcrystallized from ethanol
  10. filtrationThe product was filtered off
  11. customdried

Sources & evidence

ORD record
ord-ea940b5acf5449ec9caac0a7a8e6300b
Source dataset
uspto-grants-1987_09
Patent number
US04695575

Reaction notes

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