| Identification | Back Directory | [Name]
4-[(Biphenyl-2-ylcarbonyl)amino]benzoic acid | [CAS]
168626-74-2 | [Synonyms]
Conivaptan-4
Conivaptan Impurity 1
Conivaptan impurity D
Conivaptan intermediate
4-(2-Phenylbenzamido)benzoic acid
Conivaptan hydrochloride Impurity D
4-[(2-phenylbenzoyl)amino]benzoic acid
4-[(2-Biphenylcarbonyl)amino]benzoic acid
4-[(biphenyl-2-carbonyl)amino]benzoic acid
4-[(Biphenyl-2-ylcarbonyl)amino]benzoic acid
4-([1,1'-biphenyl]-2-carboxamido)benzoic acid
4-([1,1'-Biphenyl]-2-ylcarboxamido)benzoic acid
4-[([1,1'-Biphenyl]-2-carbonyl)aMino]benzoic Acid
4-[[oxo-(2-phenylphenyl)methyl]amino]benzoic acid
4-[([1,1'-biphenyl]-2-ylcarbonyl)amino]Benzoic acid
Benzoic acid, 4-[([1,1'-biphenyl]-2-ylcarbonyl)aMino]- | [EINECS(EC#)]
1312995-182-4 | [Molecular Formula]
C20H15NO3 | [MDL Number]
MFCD16038728 | [MOL File]
168626-74-2.mol | [Molecular Weight]
317.34 |
| Questions And Answer | Back Directory | [Synthesis]
Thionyl chloride (10.4 g, 87.4 mmol) was added to a mixture of biphenyl-2-carboxylic acid (15.0 g, 75.7 mmol) and DMF (0.28 g, 3.83 mmol) in toluene (72 mL) at an internal temperature of 40 oC. The mixture was stirred at this temperature for approximately 2 h. After completion of the reaction, the mixture was concentrated to dryness at 60 oC. The resultant residue was then diluted with toluene (36 mL) and concentrated to dryness at 60 oC, and the process was repeated again to give biphenyl-2- carbonyl chloride as an oil. Acetone (100 mL) was added to the oil, and 4-amino benzoic acid (10.4 g, 75.8 mmol) and N,N-dimethylaniline (10.1 g, 83.3 mmol) were added to the resultant solution at 25 oC. The mixture was stirred at this temperature for approximately 2 h. Water (100 mL) was then poured into the mixture, and it was stirred at 25 oC for more than 1 h. The resultant crystals were collected by fifiltration and dissolved in DMF (100 mL) at 25 oC. The solution was then fifiltered to remove insoluble materials, water (100 mL) was poured into the fifiltrate, and it was stirred at 25 oC for approximately 2 h. The resultant crystals were collected by fifiltration and dried at 40 oC to give the amide as white crystals (22.7 g, 95%).
![4-[(Biphenyl-2-ylcarbonyl)amino]benzoic acid](/NewsImg/2022-07-06/6379272500875334457959024.jpg "4-[(Biphenyl-2-ylcarbonyl)amino]benzoic acid")
Reference: Tsunoda, T.; Yamazaki, A.; Mase, T.; Sakamoto, S. Org. Process Res. Dev. 2005, 9, 593–598. |
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