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CAS No. : | 5391-39-9 | MDL No. : | MFCD00988254 |
Formula : | C5H8N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | JJWACYUTERPMBM-UHFFFAOYSA-N |
M.W : | 128.13 | Pubchem ID : | 79350 |
Synonyms : |
|
Chemical Name : | 1-Acetylimidazolidin-2-one |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
26% | With trichlorophosphate; In ethanol; at 50℃; for 8.5h;Heating / reflux; | A mixture of <strong>[1075-35-0]5-chloro-2-methylindole</strong> (30.1 g; 0.18 mole) and 1-acetyl-imidazolidine-2-one (24 g; 0.18 mole) was added to phosphorous oxychloride (178 ml) and heated to 50 C. After 5 hours, phosphorous oxychloride was evaporated. The residue was treated with ethanol (250 ml) cautiously and maintained at reflux for 3.5 hours. The mixture was concentrated under reduced pressure to half of the orignal volume to obtain a precipitate, which was collected on a filter. The crystalline residue was treated with water, washed with ethylacetate, treated with 2N sodium hydroxide to pH 11 and stirred overnight. The precipitate was filtered, washed with water and t-butylmethylether and dried to give product (10.9 g, 26%), m.p. 213 C. [0467] 1H-NMR(DMSO): d 2.5 (s, 3H, CH-31), 3.55 (s, 4H, 2×CH-2), 6.30 (b, 1H, imidazolin), 7.04 (d, 1H 8.00 (s, 1H, H-4), 11.57 (b, 1H, NH-indol); MS (Ei 70 eV) m/Z 233M+. |
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