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| CAS No.: | 73942-87-7 |
|---|---|
| Name: | 1,3-Dihydro-7,8-dimethoxy-2H-3-benzazepin-2-one |
| Molecular Structure: | |
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| Formula: | C12H13NO3 |
| Molecular Weight: | 219.24 |
| Synonyms: | 7,8-Dimethoxy-1,3-dihydro-2H-benzazepin-2-one;2H-3-benzazepin-2-one, 1,3-dihydro-7,8-dimethoxy-;7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one;7,8-Dimethoxy-1,3-dihydro-2H-benzazepin-2-one; |
| EINECS: | 1806241-263-5 |
| Density: | 1.167 g/cm3 |
| Melting Point: | 244.0 to 248.0 °C |
| Boiling Point: | 455.8 °C at 760 mmHg |
| Flash Point: | 229.5 °C |
| PSA: | 47.56000 |
| LogP: | 1.67560 |
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- 97730-31-9(S)-4'-(2-Methylbutyl)Biphenyl-4-Carbonitrile
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| With trifluoroacetic acid for 8h; Reflux; | 97% |
- 73954-34-4
N-(2,2-dimethoxy-ethyl)-3,4-dimethoxyphenylacetamide
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| With hydrogenchloride; acetic acid In water at 25℃; for 17h; | 77.5% |
| With hydrogenchloride; acetic acid for 17h; Ambient temperature; | 75% |
| With hydrogenchloride; acetic acid In water at 20℃; for 8h; | 61.4% |
- 93-40-3
(3,4-Dimethoxyphenyl)acetic acid
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: 81 percent / thionyl chloride / CH2Cl2 / 1 h / Heating 2: triethylamine / CH2Cl2 / 1 h / Ambient temperature 3: 75 percent / glacial acetic acid, conc. HCl / 17 h / Ambient temperature View Scheme | |
| Multi-step reaction with 2 steps 1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol 2: hydrogenchloride; acetic acid / water View Scheme | |
| Multi-step reaction with 2 steps 1: toluene / 30 h / Reflux 2: hydrogenchloride; sulfuric acid / water / 4 h / 25 - 30 °C / Reflux View Scheme | |
| Multi-step reaction with 3 steps 1: thionyl chloride / dichloromethane 2: triethylamine / dichloromethane 3: hydrogenchloride; acetic acid View Scheme | |
| Multi-step reaction with 2 steps 1: O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; triethylamine / N,N-dimethyl-formamide / 20 °C / Inert atmosphere 2: phosphorus pentaoxide / methanesulfonic acid / 20 °C / Inert atmosphere View Scheme |
- 10313-60-7
3,4-dimethoxyphenylacetyl chloride
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: triethylamine / CH2Cl2 / 1 h / Ambient temperature 2: 75 percent / glacial acetic acid, conc. HCl / 17 h / Ambient temperature View Scheme | |
| Multi-step reaction with 2 steps 1: triethylamine / dichloromethane 2: hydrogenchloride; acetic acid View Scheme |
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1.1: lithium triethylborohydride / tetrahydrofuran / 1.5 h / -78 °C 1.2: -78 - 20 °C 2.1: trifluoroacetic acid / 8 h / Reflux View Scheme |
- 85175-49-1
7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepine-2,4-dione
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1.1: potassium carbonate; potassium iodide / acetonitrile / 27.5 h / 80 °C 2.1: lithium triethylborohydride / tetrahydrofuran / 1.5 h / -78 °C 2.2: -78 - 20 °C 3.1: trifluoroacetic acid / 8 h / Reflux View Scheme |
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
- 293732-19-1
(4,5-dimethoxy-2-iodophenyl)methyl bromide
- 1104967-37-4
3-(2-iodo-4,5-dimethoxybenzyl)-7,8-dimethoxy-1,3-dihydrobenzo[d]azepin-2-one
| Conditions | Yield |
|---|---|
| Stage #1: 7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With potassium tert-butylate In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: (4,5-dimethoxy-2-iodophenyl)methyl bromide In N,N-dimethyl-formamide at 20℃; for 2h; | 98% |
- 6974-77-2
1-bromo-3-chloro-2-methyl propane
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
- 85176-88-1
1-(7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-on-3-yl)-2-methyl-3-chloro-propane
| Conditions | Yield |
|---|---|
| 97.5% | |
| With potassium tert-butylate 1.) DMSO, RT, 30 min, 2.) RT, 30 min; Multistep reaction; |
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
- 106-89-8
epichlorohydrin
- 85176-49-4
1-(7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-on-3-yl)-2,3-epoxy-propane
| Conditions | Yield |
|---|---|
| 94.5% |
- 73942-87-7
7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one
- 109-70-6
1,3-chlorobromopropane
- 85175-59-3
3-(3-chloropropyl)-1,3-dihydro-7,8-dimethoxy-2H-3-benzazepine-2-one
| Conditions | Yield |
|---|---|
| Stage #1: 7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With potassium tert-butylate In dimethyl sulfoxide at 25 - 30℃; for 0.5h; Stage #2: 1.3-chlorobromopropane In dimethyl sulfoxide at 15 - 20℃; for 0.5h; Reagent/catalyst; Time; Temperature; Concentration; | 89% |
| 87.3% | |
| Stage #1: 7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one With sodium hydride In N,N-dimethyl-formamide for 0.5h; Stage #2: 1.3-chlorobromopropane In N,N-dimethyl-formamide at 20℃; for 10.5h; | 66.5% |
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Chemistry
Molecular Structure of 2H-3-Benzazepin-2-one,1,3-dihydro-7,8-dimethoxy- (CAS NO.73942-87-7):
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Empirical Formula: C12H13NO3
Molecular Weight: 219.2365
H bond acceptors: 4
H bond donors: 1
Freely Rotating Bonds: 2
Polar Surface Area: 38.77 Å2
Index of Refraction: 1.546
Molar Refractivity: 59.47 cm3
Molar Volume: 187.8 cm3
Surface Tension: 39.4 dyne/cm
Density: 1.167 g/cm3
Flash Point: 229.5 °C
Enthalpy of Vaporization: 71.56 kJ/mol
Boiling Point: 455.8 °C at 760 mmHg
Vapour Pressure: 1.7E-08 mmHg at 25°C
Specification
2H-3-Benzazepin-2-one,1,3-dihydro-7,8-dimethoxy- , with CAS number of 73942-87-7, can be called 1,3-Dihydro-7,8-dimethoxy-2H-3-benzazepin-2-one ; 7,8-dimethoxy-1, 3-dihydro-2H-benzo[d] azepin-2-one ; 7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one .