Tris -1,3,5-triazine, structure

Therapeutic Function Antineoplastic Chemical Name 2,4,6-Tris(1-aziridinyl)-s-triazine Common Name Tretamine Structural Formula ... 

Benzo-flw-triazine tri-N-oxides 384 (R = H, Me R1 = mesityl, 2,6-ClC6H3) are formed from the reaction of nitrile oxides R CNO with benzofuroxans 385. The structure of 384 (R = Me, R1 = mesityl) has been confirmed by X-ray crystal structure analysis (431). 

Another class of herbicides is called tri-azines. Triazine compounds consist of a benzene-like structure with alternating nitrogen and carbon atoms in a hexagonal... 

Figure 2.2 Structures of TPM or 2,4,6-tris(picrylamino)-l,3,5-triazine series of explosives.

The only monocyclic 1,2,3-triazine of which the structure has been determined by X-ray crystallographic analysis is 4,5,6-tris(4-methoxyphenyl)-l,2,3-triazine (72CB3704). The results show that the 1,2,3-triazine ring is planar, as one expects for a molecule with some degree of electron delocalization. The experimental bond distances and angles are given in Table 1. They are in reasonable agreement with calculated values. 

So we were induced to try this approach, too, and we started synthesis work in the field of s-triazines. The result of our primary working hypothesis was disappointing derivatives bearing anilino radicals showed no herbicidal effects. Surprisingly, however, the herbicidal activity reappeared in the structure 2-chloro-4,6-bis-diethylamino-s-triazine, compound G-25804 shown previously. The awareness that we were confronted with a completely new herbicidal matrix with apparently superior usefulness led us to intensive work around the s-triazine ring system. 

Figure 4.4 Structure of the tris[2-(oxoethyl-jV-2 -fluoroethylimidazolium)]triazine cation...

Modification of poly(carbodiimide) foams with polyols afford hybride foams containing urethane sections. However, the thermal stabilities of the poly (urethane carbodiimide) foams are lower. Using isocyanate trimerization catalysts, such as l,3,5-tris(3-dimethylaminopropyl)hexahydro-s-triazine, in combination with the phospholene oxide catalyst gives poly(isocyanurate carbodiimide) foams with improved high temperature properties. The cellular poly(carbodiimide) foams derived from PMDI incorporate six-membered ring structures in their network polymer structure. ... 

---