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Basic Information
| CAS No.: | 2050-16-0 |
|---|---|
| Name: | 4,4'-azobis(phenol) |
| Article Data: | 82 |
| Molecular Structure: | |
|
|
|
| Formula: | C12H10 N2 O2 |
| Molecular Weight: | 214.224 |
| Synonyms: | Phenol,4,4'-azobis- (9CI); Phenol, 4,4'-azodi- (6CI,7CI,8CI); 4,4'-Azobisphenol;4,4'-Azodiphenol; 4,4'-Dihydroxyazobenzene; 4-(4-Hydroxyphenylazo)phenol; NSC402595; p,p'-Dihydroxyazobenzene; p-Azophenol |
| Density: | 1.24g/cm3 |
| Melting Point: | 204 °C |
| Boiling Point: | 392°Cat760mmHg |
| Flash Point: | 190.9°C |
| PSA: | 65.18000 |
| LogP: | 3.51320 |
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Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 4-nitro-phenol In ethanol for 0.0333333h; Stage #2: With sodium tetrahydroborate In ethanol for 0.666667h; Reflux; | 91% |
| With potassium hydroxide at 210 - 215℃; | 90% |
| With 4,4'-di-tert-butylbiphenyl; lithium; iron(II) chloride In tetrahydrofuran for 3.5h; Heating; | 81% |
Conditions
| Conditions | Yield |
|---|---|
| With cetyl-trimethylammonium dichromate In chloroform for 3h; Heating; | 85% |
| Stage #1: 4-amino-phenol With hydrogenchloride In water at 23 - 25℃; for 0.5h; Stage #2: With sodium nitrite In water at 0℃; for 2h; Stage #3: With ammonium hydroxide; copper(ll) sulfate pentahydrate; hydroxylamine hydrochloride In water at 0℃; | 54% |
| Stage #1: 4-amino-phenol With hydrogenchloride In water at 20℃; for 0.5h; Stage #2: With sodium nitrite In water for 3h; Stage #3: With copper(ll) sulfate pentahydrate; hydroxylamine hydrochloride; ammonia In water | 51% |
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 4-amino-phenol With hydrogenchloride; sodium nitrite In water at 0 - 20℃; Stage #2: phenol With sodium hydroxide In water at 20℃; for 12h; | 70.1% |
| Stage #1: 4-amino-phenol With hydrogenchloride; sodium nitrite In methanol; water at 0℃; Stage #2: phenol With potassium hydroxide In methanol; water at 20℃; for 2h; | 56.1% |
| Stage #1: 4-amino-phenol With hydrogenchloride; sodium nitrite In methanol; water at 0℃; Stage #2: phenol With sodium hydroxide In methanol; water at 20℃; for 2h; | 56.1% |
- 67-56-1
methanol
- 326-04-5, 32213-80-2, 51789-07-2
N,N'-Bis-(4-fluoro-phenyl)-diazene N-oxide
A
- 120455-03-0
5-methoxy-2-phenyl-2H-indazole
B
- 120455-06-3
5-methoxy-2-(4-methoxyphenyl)-2H-indazole
C
- 1562-94-3, 21650-70-4, 51437-65-1
4,4'-dimethoxyazoxybenzene
D
- 2050-16-0
4,4'-dihydroxyazobenzene
Conditions
| Conditions | Yield |
|---|---|
| With N-doped TiO2 In water at 20℃; for 3h; UV-irradiation; Inert atmosphere; | A 13% B 55% C 11% D 10% |
...Expand
- 67-56-1
methanol
- 614-26-6
4,4'-bis(chloro)azoxybenzene
A
- 120455-03-0
5-methoxy-2-phenyl-2H-indazole
B
- 120455-06-3
5-methoxy-2-(4-methoxyphenyl)-2H-indazole
C
- 1562-94-3, 21650-70-4, 51437-65-1
4,4'-dimethoxyazoxybenzene
D
- 2050-16-0
4,4'-dihydroxyazobenzene
Conditions
| Conditions | Yield |
|---|---|
| With N-doped TiO2 In water at 20℃; for 3h; UV-irradiation; Inert atmosphere; | A 15% B 45% C 12% D 10% |
...Expand
- 67-56-1
methanol
- 326-04-5, 32213-80-2, 51789-07-2
N,N'-Bis-(4-fluoro-phenyl)-diazene N-oxide
A
- 120455-03-0
5-methoxy-2-phenyl-2H-indazole
B
- 120455-06-3
5-methoxy-2-(4-methoxyphenyl)-2H-indazole
C
- 1562-94-3, 21650-70-4, 51437-65-1
4,4'-dimethoxyazoxybenzene
D
- 1689-82-3
4-hydroxyazobenzene
E
- 2396-60-3
4-methoxyazobenzene
F
- 2050-16-0
4,4'-dihydroxyazobenzene
Conditions
| Conditions | Yield |
|---|---|
| With N-doped TiO2 In water at 20℃; for 3h; sunlight; Inert atmosphere; | A 10% B 44% C 15% D 7% E 6% F 15% |
...Expand
- 100-02-7
4-nitro-phenol
A
- 123-30-8
4-amino-phenol
B
- 2050-16-0
4,4'-dihydroxyazobenzene
C
- 15596-57-3, 117823-25-3
4,4'-dihydroxyazoxybenzene
Conditions
| Conditions | Yield |
|---|---|
| With hydrazine hydrate; nickel(II) nitrate; zinc In tert-butyl alcohol for 0.833333h; Heating; | A 26 % Chromat. B 8 % Chromat. C 40% |
| With hydrazine hydrate; nickel(II) nitrate; zinc In ethanol for 4h; Heating; | A 18% B 17 % Chromat. C 20% |
...Expand
- 67-56-1
methanol
- 614-26-6
4,4'-bis(chloro)azoxybenzene
A
- 120455-03-0
5-methoxy-2-phenyl-2H-indazole
B
- 120455-06-3
5-methoxy-2-(4-methoxyphenyl)-2H-indazole
C
- 1689-82-3
4-hydroxyazobenzene
D
- 2050-16-0
4,4'-dihydroxyazobenzene
Conditions
| Conditions | Yield |
|---|---|
| With N-doped TiO2 In water at 20℃; for 3h; sunlight; Inert atmosphere; | A 8% B 40% C 7% D 15% |
...Expand
- 20638-42-0
bis-(4-oxo-cyclohexa-2,5-dienylidene)-hydrazine
- 2050-16-0
4,4'-dihydroxyazobenzene
Conditions
| Conditions | Yield |
|---|---|
| With diethyl ether; sulphurous acid | |
| With phenylhydrazine; benzene |
Conditions
| Conditions | Yield |
|---|---|
| With potassium hydroxide at 180℃; |
