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CAS No. : | 1752-88-1 | MDL No. : | MFCD08594075 |
Formula : | C3H7ClN2O | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | HAYWTXQRYXYRAF-UHFFFAOYSA-N |
M.W : | 122.55 | Pubchem ID : | 2733712 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | |
GHS Pictogram: |
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* 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 |
---|---|---|
43% | 1.00 g (5.29 mmol) <strong>[67515-59-7]4-fluoro-3-trifluoromethyl-benzonitrile</strong> are stirred together with 1.35 g (12.0 mmol) potassium-tert.-butoxide in 4 ml DMSO at ambient temperature under an argon atmosphere for 35 min and then 1.00 g (8.16 mmol) pyrazolidin-3-on-hydrochloride in 3 ml DMSO are added. After stirring at ambient temperature for 68 h the reaction mixture is poured into semisat. sodium chloride solution and extracted with ethyl acetate. The combined organic phases are dried over magnesium sulphate and evaporated down completely i. vac. Yield: 0.58 g (43%) C11H8F3N3O (255.20) Mass spectrum: (M+H)+=256 Rf value: 0.15 (silica gel; dichloromethane+0.5% conc. ammonia solution) |
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