Azines


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Azines

 

heterocyclic compounds containing at least two other atoms, of which at least one is a nitrogen atom, in the cycle along with carbon atoms. Azines with two nitrogen atoms in the ring are called diazines—for example, pyrimidine (I); with three nitrogens they are known as triazines—for example, cyanuric acid (II); and so forth. Ox-azine (III) and thiazine (IV) are examples of azines whose cycles include other atoms besides nitrogen. Azines possess a basic character and produce salts with acids.

Many azine derivatives are of great importance. For example, the nucleic acids include pyrimidine bases. The pyrimidine system is found in vitamins B1, B2, and folic acid. Chlorpromazine and other phenothiazine derivatives (V) are used in psychiatry and surgery. Azines are also found in other drugs, for example, phenobarbital and sulfamethazine, as well as in dyes—Indanthrene, safranine, and others.

IA. F. KOMISSAROV

References in periodicals archive ?
Delavarenne, "Method for Preparing Azines and Hydrazones," US Patent 3972878 (Aug 3, 1976).
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I like publishers who have drunk deep of the Kool-Aid, who believe with every fibre in their body that Vogue is the most powerful fashion mag- azine on Earth and that Conde Nast Traveller is read by every alpha male and female who ever took a Caribbean holiday.
range which corresponds to the polymerization of benzox- azine monomers.
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According to one Bosnian mag azine editor, the rationale is clear for this strategy: "The role of the independent media is to watch the government, and tell the people what the state-controlled media won't.
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