The triazines have planar six-membered benzene-like ring but with three carbons replaced by nitrogens.
Guanamines are closely related to melamine, except with one amino substituent replaced by an organic group.
[citation needed] The more common 1,3,5-isomers are prepared by trimerization of nitrile and cyanide compounds, although more specialized methods are known.
[3] The 1,2,4-triazines can react with electron-rich dienophiles in an inverse electron demand Diels-Alder reaction.
[4] In 2007, a method for synthesizing highly porous triazine-based polymers was discovered, and found to be useful (in conjunction with palladium) for the selective reduction of phenols.
[5][6] A series of 1,2,4-triazine derivatives known as bis-triazinyl bipyridines (BTPs) have been considered as possible extractants for use in the advanced nuclear reprocessing.
Triazine-based ligands have been used to bind three dinuclear arene ruthenium (or osmium) compounds to form metallaprisms.