Hydrochloric Acid → HCID 20504009, compound

HRID 1702489

Reaction equation

HRID 1702489 reaction equation
Br[CH2:2][C:3]1[NH:4][C:5](=[O:18])[NH:6][C:7]=1[C:8](=[O:17])[C:9]1[CH:14]=[CH:13][C:12]([O:15][CH3:16])=[CH:11][CH:10]=1.[ClH:19].Cl.[CH3:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[N:28]1[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]1.C(=O)([O-])[O-].[K+].[K+].Cl>C(O)C.O>[ClH:19].[CH3:16][O:15][C:12]1[CH:13]=[CH:14][C:9]([C:8]([C:7]2[NH:6][C:5](=[O:18])[NH:4][C:3]=2[CH2:2][N:31]2[CH2:32][CH2:33][N:28]([C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=3[CH3:21])[CH2:29][CH2:30]2)=[O:17])=[CH:10][CH:11]=1

Participants

7

Procedure

A mixture of 6.2 g of 4-(bromomethyl)-1,3-dihydro-5-(4-methoxybenzoyl)-2H-imidazol-2-one, 5.0 g of 1-(2-methylphenyl)piperazine dihydrochloride and 5.4 g of potassium carbonate in 100 ml of ethanol is stirred at room temperature for 24 hours. Water is added to the reaction mixture and the precipitate which forms is separated by filtration. The solid is then suspended in 2-propanol, 1 equivalent of hydrochloric acid is added, and the resulting solid is separated and recrystallized from 2-propanol/water to give 1,3-dihydro-4-(4-methoxybenzoyl)-5-[[4-(2-methylphenyl)-1-piperazinyl]methyl]-2H-imidazol-2-one hydrochloride melting at about 223°-225° C. with decomposition.

Workup

  1. customthe precipitate which forms is separated by filtration
  2. customthe resulting solid is separated
  3. customrecrystallized from 2-propanol/water

Sources & evidence

ORD record
ord-cef395f726b446778236056e147d2127
Source dataset
uspto-grants-1983_04
Patent number
US04381393

Linked notes

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