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CAS No. : | 5334-43-0 | MDL No. : | MFCD00020730 |
Formula : | C10H8N4 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | MAKQREKUUHPPIS-UHFFFAOYSA-N |
M.W : | 184.20 | Pubchem ID : | 79256 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302+H312+H332-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
59% | In methanol;Reflux; | General procedure: A 2 M solution of MeONa in MeOH (2.5 ml, 5 mmol) wasadded to a mixture of 5-amino-1-phenyl-1-pyrazolo-4-carbonitrile (4) (460 mg, 2.5 mmol) and the appropriateN-substituted isatin 2a-d (2.5 mmol) in MeOH (15-20 ml).The reaction mixture was refluxed for 9-11 h (control byTLC). The precipitate that formed after cooling was filteredoff and recrystallized from 2-PrOH. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; In ethanol; water; at 80℃; | General procedure: Intermediate 4 (1mmol) and the intermediate 7 (1mmol) were dissolved in ethanol to the glass flask, then HCl solution was added as a catalyst refluxed at 80C for 15-18h. After the TLC monitoring reaction was completed, the mixture was vacuum filtered and concentrated. Finally, the above crude product can be isolated and purified by column chromatography (Hexane/EtOAc=8:1) to obtain target compounds. |
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