| Identification | Back Directory | [Name]
5-Chloro-6-nitro-1H-benzo[d]imidazol-2(3H)-one | [CAS]
60713-78-2 | [Synonyms]
5-Chloro-6-nitro-1H-benzo[d]imidazol-2(3H)-one
5-chloro-6-nitro-1,3-dihydrobenzimidazol-2-one
2H-Benzimidazol-2-one, 5-chloro-1,3-dihydro-6-nitro- | [Molecular Formula]
C7H4ClN3O3 | [MDL Number]
MFCD13704889 | [MOL File]
60713-78-2.mol | [Molecular Weight]
213.58 |
| Chemical Properties | Back Directory | [Boiling point ]
234.1±33.0 °C(Predicted) | [density ]
1.631±0.06 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,Room Temperature | [pka]
9.82±0.30(Predicted) | [Appearance]
Light yellow to yellow Solid |
| Hazard Information | Back Directory | [Synthesis]
4-Chloro-5-nitro-1,2-benzenediamine (8.34 g, 44.4 mmol) was dissolved in tetrahydrofuran (625 mL) at 0 °C, followed by the addition of N,N'-carbonyl diimidazole (8.65 g, 53.3 mmol). The reaction mixture was slowly warmed to 23 °C and stirred continuously at this temperature for 20 hours. Upon completion of the reaction, the mixture was concentrated to about 300 mL, and then 1 M aqueous hydrochloric acid (500 mL) and water (total volume adjusted to 2 L) were added. The resulting suspension was cooled at 0 °C for 2 h. The precipitate was collected by filtration and dried on a filter. Finally, the precipitate was ground with cold ethyl acetate (20 mL) and rinsed with ethyl acetate (2 x 5 mL) to afford 5-chloro-6-nitro-1H-benzo[d]imidazol-2(3H)-one (7.26 g, 76% yield). Mass spectrometry (ESI/CI) analysis: calculated value C7H4ClN3O3, 213.0; measured value m/z, 214.0 [M + H]+. | [References]
[1] Patent: WO2009/134750, 2009, A1. Location in patent: Page/Page column 80
[2] Patent: WO2013/79505, 2013, A1. Location in patent: Page/Page column 72 |
|
| Company Name: |
Energy Chemical
|
| Telephone: |
021-58432009 400-005-6266 |
| Website: |
http://www.energy-chemical.com |
|