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| CAS No.: | 1739-84-0 |
|---|---|
| Name: | 1,2-Dimethylimidazole |
| Molecular Structure: | |
|
|
|
| Formula: | C5H8N2 |
| Molecular Weight: | 96.1319 |
| Synonyms: | Imidazole,1,2-dimethyl- (6CI,7CI,8CI);1,2-Dimethyl-1H-imidazole;2,3-Dimethyl-1H-imidazole;Curezol 1,2DMZ;N,2-Dimethylimidazole;NSC 111174;PC CAT DMI;SN 25 (vulcanizing agent);Toyocat DM 70; |
| EINECS: | 217-101-2 |
| Density: | 0.98 g/cm3 |
| Melting Point: | 37-39 °C(lit.) |
| Boiling Point: | 206 °C at 760 mmHg |
| Flash Point: | 73 °C |
| Solubility: | Soluble in water. |
| Appearance: | colorless to yellow low melting mass |
| Hazard Symbols: |
 Xn, Xi
|
| Risk Codes: | 22-38-41 |
| Safety: | 24-26-2 |
| Transport Information: | UN 3263 8/PG 2 |
| PSA: | 17.82000 |
| LogP: | 0.72850 |
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| Conditions | Yield |
|---|---|
| H-Y zeolite at 299.9℃; | 92.5% |
| zeolite HNaY at 300 - 400℃; | 83% |
- 131543-46-9
Glyoxal
- 75-07-0
acetaldehyde
- 74-89-5
methylamine
A
- 616-47-7
1-methyl-1H-imidazole
B
- 1739-84-0
1,2-dimethyl-1H-imidazole
C
- 693-98-1
2-methylimidazole
| Conditions | Yield |
|---|---|
| With ammonium hydroxide In water at 25 - 70℃; under 225023 Torr; Pressure; Temperature; | A 6.27% B 85.1% C 6.59% |
| Conditions | Yield |
|---|---|
| With 18-crown-6 ether; potassium carbonate at 100℃; for 8h; | 85% |
| With 18-crown-6 ether; potassium carbonate at 100℃; for 10h; | 85% |
| In N,N-dimethyl-formamide at 120 - 145℃; Solvent; Temperature; | 85% |
| Conditions | Yield |
|---|---|
| With potassium hydroxide In 1,2-dimethoxyethane at 8℃; for 0.5h; | 83% |
| at 30℃; for 8h; | 70% |
- 79-20-9
acetic acid methyl ester
- 107-15-3
ethylenediamine
A
- 534-26-9
lysidine
B
- 1739-84-0
1,2-dimethyl-1H-imidazole
C
- 693-98-1
2-methylimidazole
| Conditions | Yield |
|---|---|
| Pt/Al2O3 at 400℃; under 760 Torr; | A 6.6% B 15.2% C 61.1% |
| Pt/Al2O3 at 360℃; under 760 Torr; | A 15.5% B 9% C 58.5% |
| Pt/Al2O3 at 360℃; under 760 Torr; Product distribution; var. temp.; |
- 24134-09-6
5-bromo-1,2-dimethyl-1H-imidazole
- 1739-84-0
1,2-dimethyl-1H-imidazole
| Conditions | Yield |
|---|---|
| With ammonia; sodium In tert-butyl alcohol for 0.0833333h; Mechanism; Heating; other reagent and solvent; | 48% |
| With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In toluene for 48h; Heating; Irradiation; or Na/NH3, tBuOH, reflux; | 50 % Spectr. |
- 24134-13-2
1,2-dimethyl-5-iodoimidazole
- 1739-84-0
1,2-dimethyl-1H-imidazole
| Conditions | Yield |
|---|---|
| With ammonia; sodium In tert-butyl alcohol for 0.0833333h; Mechanism; Heating; other reagent and solvent; | 15% |
| With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In toluene Heating; Irradiation; or Na/NH3, tBuOH, reflux; | 53 % Spectr. |
- 861362-00-7
4-chloro-1,2-dimethyl-1H-imidazole
- 1739-84-0
1,2-dimethyl-1H-imidazole
| Conditions | Yield |
|---|---|
| With diethyl ether; sodium |
- 19225-92-4
2-chloromethyl-1-methylimidazole
- 1739-84-0
1,2-dimethyl-1H-imidazole
| Conditions | Yield |
|---|---|
| With acetic acid; zinc |
- 900640-98-4
5-chloro-2-chloromethyl-1-methyl-1H-imidazole
- 1739-84-0
1,2-dimethyl-1H-imidazole
| Conditions | Yield |
|---|---|
| With potassium hydroxide; palladium on activated charcoal; hydrazine | |
| With potassium hydroxide; Pd-BaSO4; hydrazine |
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Chemistry
MS:
MF: C5H8N2
Density: 1.084
Mp: 29-30°C
Bp: 204°C
1,2-Dimethylimidazole is harmful if swallowed and is irritating to skin. Besides, 1,2-Dimethylimidazole is risk of serious damage to the eyes.Toxicity Data With Reference
Safety Profile
Avoid 1,2-Dimethylimidazole contact with skin. In case of 1,2-Dimethylimidazole contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany:2
RIDADR:UN 3263 8/PG 2
HazardClass:8
HS Code:29332990
RTECS:NI4838854
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