Pyrazine is a six-membered heterocyclic organic compound with two nitrogen atoms. Aromatic.
| Pyrazine | |
|---|---|
 | |
 | |
| Are common | |
| Systematic name | pyrazine |
| Chem. formula | C 4 H 4 N 2 |
| Physical properties | |
| condition | white crystals |
| Molar mass | 80.09 g / mol |
| Density | 1,031 g / cmΒ³ |
| Thermal properties | |
| T. melt. | 52 Β° C |
| T. bale. | 115 Β° C |
| Enthalpy of Education | 138.9 kJ / mol |
| Chemical properties | |
| pK a | |
| Classification | |
| Reg. CAS number | 290-37-9 |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| Chebi | 30953 |
| ChemSpider | |
Content
Getting
Physical Properties
It is soluble in water, ethanol, diethyl ether.
Chemical Reactions
Enters into the reaction of nucleophilic and electrophilic substitution. When aminated with sodium amide, it is converted into 2-aminopyrazine in liquid ammonia. When oxidized with a mixture of acetic anhydride - hydrogen peroxide, gives N-oxides on one or both of the nitrogen.
Notes
- β CRC Handbook of Chemistry and Physics (1st student edition) / R. C. Weast - 1 - CRC Press , 1988 .-- ISBN 978-0-8493-0740-9
Literature
- Chemical encyclopedia. - T.3. - M.: Soviet Encyclopedia, 1992. - S. 520-521