Imidazole → HCID 53929732, compound
Reaction equation
[CH2:1]([O:3][C:4](=[O:20])[CH2:5][C:6](Cl)([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[CH3:2].[NH:21]1[CH:25]=[CH:24][N:23]=[CH:22]1>C(#N)C>[CH2:1]([O:3][C:4](=[O:20])[CH2:5][C:6]([C:22]1[NH:21][CH:25]=[CH:24][N:23]=1)([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)[CH3:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
14.4 g (0.05 mole) β-chloro-β,β-diphenyl-propionic acid ethyl ester (prepared from β-hydroxy-β,β-diphenyl-propionic acid ethyl ester, Ber. 40, 4538, by treatment with phosphorus pentachloride) are heated in 100 ml acetonitrile with 10 g imidazole at boiling temperature for 16 hours. The solvent is distilled off in a vacuum, the residue treated with 50 ml of water and extracted with methylene chloride. After drying, the solvent is distilled off in a vacuum. The β-imidazolyl-β,β-diphenyl-propionic acid ethyl ester is thus obtained in the form of crystals of m.p. 75° C.
Workup
- customfor 16 hours
- distillationThe solvent is distilled off in a vacuum
- additionthe residue treated with 50 ml of water
- extractionextracted with methylene chloride
- customAfter drying
- distillationthe solvent is distilled off in a vacuum
Sources & evidence
- ORD record
- ord-aac2acc8298c435a8c4f984ec99b36d3
- Source dataset
- uspto-grants-1976_08
- Patent number
- US03978069
Reaction notes
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