| Identification | More | [Name]
3-Bromo-2,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one | [CAS]
86499-96-9 | [Synonyms]
3-bromo-1,3,4,5-tetrahdro-2h-benzazepin-2-one
3-BROMO-1,3,4,5-TETRAHYDRO-2H-1-BENZAZEPIN-2-ONE
3-BROMO-1,3,4,5-TETRAHYDRO-2H-1-BENZAZEPINE-2-ONE
3-BROMO-1,3,4,5-TETRAHYDRO-2H-L-BENZAZEPIN-2-ONE
3-BROMO-1,3,4,5-TETRAHYDRO-BENZO[B]AZEPIN-2-ONE
3-BROMO-2,3,4,5-TETRAHYDRO-1H-1-BENZAZEPINE-2-ONE
3-BROMO-2,3,4,5-TETRAHYDRO-2H-1-BENZAZEPIN-2-ONE
3-BROMO-2,3,4,5-TETRAHYDRO-2H-BENZO[B]AZEPIN-2-ONE
3-BROMO-2,3,4,5-TETRAHYDRO-2-OXO-1H-1-BENZAZEPINE
3-BROMO-2,3,4,5-TRTRAHYDRO-2H-1-BENZAZEPINE-2-ONE
3-bromobenzocaprolactam
A-BROMOBENZOCAPROLACTAM
ALPHA-BROMOBENZO-CAPROLACTAM
3-BromoTetrahydrobenazepin-2-One
3-BROMO-1,3,4,5-TETRAHYDRO-2H-BENZAZEPIN-2-ONE
3-BROMO-1,3,4,5-TETRAHYDRO-2H-1-BENZAEPINE-2-ONE
3-BBC: 3-BROMO-2,3,4,5-TETRAHYDRO-1H-1-BENZAZEPIN-2-ONE
3-BROMO-2,3,4,5-TETRAHYDRO-2H-1-BENZAZEPINE-2-ONE
3-Bromo-2,3,4,5-tetrahydro-2H-
3-BROMO-1,3,4,5-TETRAHYDRO-2H-1-BENZAZEPINE-2-ONE HPLC +99.0% | [Molecular Formula]
C10H10BrNO | [MDL Number]
MFCD03085918 | [Molecular Weight]
240.1 | [MOL File]
86499-96-9.mol |
| Chemical Properties | Back Directory | [Melting point ]
164 °C | [Boiling point ]
383.2±42.0 °C(Predicted) | [density ]
1.492±0.06 g/cm3(Predicted) | [Fp ]
185.542℃ | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [solubility ]
slightly soluble in ethanol, benzene, acetone, insoluble in water | [pka]
13.59±0.40(Predicted) | [CAS DataBase Reference]
86499-96-9(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Uses]
3-Bromo-1,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one is an intermediate in the synthesis of Benazepril Hydrochloride. Benazepril Hydrochloride is a first-line antihypertensive drug recommended by the WHO. It is a chiral drug with excellent clinical efficacy, strong safety and tiny side effects in the international antihypertensive drugs of angiotensin converting enzyme inhibitors. | [Chemical Properties]
White or almost white crystalline | [Preparation]
The preparation of 3-Bromo-1,3,4,5-tetrahydro-2H-benzo[b]azepin-2-one is as follows:10 parts by weight of the heated melted polyphosphoric acid was added to the drying kettle, With stirring, The above 2-bromo-3,4-dihydro-N-hydroxy- (2H) -naphthalimide was added in portions at a temperature of 60 ° C, Insulation reaction for 20 hours; The reaction solution was added dropwise to 12.5 parts by weight of water to carry out hydrolysis, Still Washed to give 3-bromo-1,3,4,5-tetrahydro-2H-1-benzazepin-2-one crude; 10 parts by weight of methanol and 0.1 part by weight of activated carbon were added, Heating decolorization, After filtration, the filtrate was cooled to 10 ° C for 20 hours, centrifuged, washed and dried to give 3-bromo-1,3,4,5-tetrahydro-2H-1-benzazepan-2-one. The purity of the product was 3, 10-bromo-1,3,4,5-tetrahydro-2H-1-benzazepan-2-one as high as 99.6% and the yield was as high as 98%.
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