Chemistry of 1 2 3-Triazines and 1 2 4-Triazines, Tetrazines, and Pentazin

1,2,3-TRIAZINES (H. Neunhoeffer). Introduction. Uncondensed Aromatic Systems. Uncondensed Reduced Systems. 1,2,3-Triazine Rings Condensed with Carbocycles. 1,2,3-Triazine Rings Condensed with Heterocycles through Carbon Atoms. 1,2,3-Triazine Rings Condensed with Heterocycles through a Carbon Atom and a Nitrogen Atom. 1,2,3-Triazine Rings Condensed with Two Heterocycles. 1,2,3-Triazine Rings Condensed with Heterocycles through Two Nitrogen Atoms. Uses and Biochemical Aspects of 1,2,3-Triazine Derivatives. 1,2,4-TRIAZINES (H. Neunhoeffer). Introduction. Uncondensed Aromatic Systems. Uncondensed Reduced 1,2,4-Triazines. Condensed 1,2,4-Triazine Systems. 1,2,4-Triazine Rings Condensed with Heterocycles through Carbon Atoms. 1,2,4-Triazine Rings Condensed with Heterocycles through a Carbon and a Nitrogen Atom. 1,2,4-Triazine Rings Condensed with Heterocycles through Two Nitrogen Atoms. 1,2,4-Triazine Rings Condensed with Two Heterocycles. 1,2,4-Triazine Rings as Part of a Bicyclic System. Uses and Biochemical Aspects of 1,2,4-Triazines. Polymers Containing the 1,2,4-Triazine Nucleus. References. 1,2,4,5-TETRAZINES (P. F. Wiley). Introduction. Uncondensed Aromatic Systems. Uncondensed Reduced Systems. Verdazyls. Condensed Systems. Polymers. Uses. References. OTHER SIX-MEMBERED NITROGEN HETEROCYCLES. (P. F. Wiley). 1,2,3,4-Tetrazines. 1,2,3,5-Tetrazines. Pentazines.