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CAS No. : | 100-48-1 | MDL No. : | MFCD00006417 |
Formula : | C6H4N2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | GPHQHTOMRSGBNZ-UHFFFAOYSA-N |
M.W : | 104.11 | Pubchem ID : | 7506 |
Synonyms : |
|
Chemical Name : | 4-Cyanopyridine |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312+P330-P302+P352+P312-P304+P340+P312-P362+P364-P501 | UN#: | N/A |
Hazard Statements: | H302-H312-H332 | 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 |
---|---|---|
71.9% | With ammonium peroxydisulfate; sulfuric acid; silver nitrate In dichloromethane; waterReflux | Step 1 : 2-Acetylisonicotinonitrile To a solution of isonicotinonitrile (52 g, 0.5 mol) in dichloromethane (1300 mL) and water (1 100 mL) were added ammonium persulfate ((NH4)2S208) (170 g, 0.75 mol), silver nitrate (6.8 g, 0.04 mol) and aqueous sulfuric acid (40 mL, 98percent sulfuric acid in 400 mL). A solution of 3-oxo-butyric acid (1 10 g, 1.25 mol) in dichloromethane (100 mL) was added dropwise while keeping the mixture refluxing. The reaction mixture was refluxed for 2 h. The resulting mixture was basified to pH -8-9 using sodium carbonate powder. The mixture was filtered and the filtrate was extracted with dichloromethane (500 mL x 3). The combined organics were dried over sodium sulfate, and concentrated under reduced pressure. The residue was recrystallized from ethanol to afford 2-acetylisonicotinonitrile (52.0 g, 71.9percent). |
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