Tris cyanurate

Virtually all of the organo derivatives of CA are produced by reactions characteristic of a cycHc imide, wherein isocyanurate nitrogen (frequendy as the anion) nucleophilically attacks a positively polarized carbon of the second reactant. Cyanuric acid and ethylene oxide react neady quantitatively at 100°C to form tris(2-hydroxyethyl)isocyanurate [839-90-7] (THEIC) (48—52). Substitution of propylene oxide yields the hydroxypropyl analogue (48,49). At elevated temperatures (- 200° C). CA and alkylene oxides react in inert solvent to give A/-hydroxyalkyloxazohdones in approximately 70% yield (53). Alternatively, THEIC can be prepared by reaction of CA and 2-chloroethanol in aqueous caustic (52). THEIC can react further via its hydroxyl fiinctionahty to form esters, ethers, urethanes, phosphites, etc (54). Reaction of CA with epichlorohydrin in alkaline dioxane solution gives... 

Cyanuric acid readily dissolves in aqueous formaldehyde forming tris(hydroxymethyl)isocyanurate [10471-40-6] (THMIC) which can be isolated by evaporation (11). THMIC in turn reacts with acetic anhydride to yield tris(acetoxymethyl)isocyanurate [54635-07-3], either thionyl chloride or phosphoms pentachloride to give tris(chloromethyl)isocyanurate [63579-00-0], and phenyl isocyanate in pyridine to yield tris(A/-phenylcarbamoxymethyl) isocyanurate [21253-39-4] in 87% yield (65). Reaction of CA with paraformaldehyde and 2,6-dicyclohexylphenol yields... 

Pelizzetti et al. (1990) investigated the photocatalytic degradation of atrazine in solution in the presence of suspended titanium dioxide as a catalyst under simulated sunlight. Degradation was rapid but mineralization did not occur. Intermediate compounds included 6-hydroxy-A/-ethyl-/V -(l-methylethyl)-5 triazine-2,4-diamine, 2,4-diamino-6-chloro-A/-(l-methylethyl)-5-triazine, 2,4-di-amino-6-chloro-/V-ethyl-5-triazine, 2,4-diamino-6-chloro-5-triazine, 2,4-diamino-6-hydroxy-5-tri-azine, 2-amino-4,6-dihydroxy-5-triazine, 2-amino-4-hydroxy-6-chloro-5-triazine, 2,4-dihydroxy-6-chloro-s-triazine, 6-chloro-/V-acetyl-/V -(l-methylethyl)-5-triazine-2,4-diamine, and cyanuric acid as the final product. 

Coburn " synthesized 2,4,6-tris(picrylamino)-l,3,5-triazine (TPM) (190) from the reaction of aniline with cyanuric chloride followed by nitration of the product with mixed acid. Treatment of TPM (190) with acetic anhydride-nitric acid leads to Al-nitration and the isolation of the corresponding tris-nitramine. The high thermal stability of TPM (m.p. 316 °C) coupled with its facile synthesis and low sensitivity to impact has led to its large scale manufacture in the US by Hercules Inc. China has reported a low-cost synthetic route to TPM but this has a limited production capacity. 

Difluorochloro- and fluorodichloromethanesulfenyl chlorides react directly with AgOCN to give the monomeric isocyanates, CF2CISNCO and CFCI2SNCO, whereas in benzene solution the corresponding iso-cyanurates are formed (61). Freshly prepared CFgClSNCO either tri-merizes or dimerizes to a uretidine dione within a month when kept at 20°C. 

SODIUM DICHLORO-s-TRI AZINETRION E Sodium Dichloroiso-cyanurate Oxidizing Material, II 3 0 2 oxy... 

LACTAMS Di-n-butyltin oxide. Ily-droxylamine-O-sulfonic acid. Iodine azide. Sodium eyanoborohydride. (3-LAC TAMS Cyanuric chloride. Grignard reagents. Ion-exchange resins. Lithium phenylethynolate. Sodium dicarbonyl-cyclopentadienylferrate. Titanium(lll) chloride. Titanium(IV) chloride. Tri-phenylphosphino-Carbon tetrachloride. Triphenylphosphine-Die thyl azodicar-boxylate. Triphenylphosphine-2,2 -Dipyridyl disulfide. 

OB to CO — 4.6% Col powd, decompg sharply without melting at 248° appreciably sol in w (hydrolyzing slowly in cold and rapidly in hot w with formation of cyanuric acid). Was prepd by Cason on treating tri-acetylmelamine with a 1/1 mixt of fuming... 

Cyanuric chloride is the most important of these compounds. The uses of chloro-1,3,5-triazines derived from cyanuric chloride will be discussed within the same section. The uses of tris-iV- chloroisocyanuric acid were mentioned in Section 2.20.6.4. 

Fig. 4 Resonant frequency changes with time due to repetitive FIA melamine injections, for the MIP-QCM chemosensor. Melamine concentration is indicated with number at each curve. Inset shows FIA calibration plots for (1) melamine and its interfering compounds, such as (2) ammeline, (3) cyanuric acid, and (4) cyromazine. Volume of the injected sample solution was 100 pL. The flow rate of the 1 mM FIC1 carrier solution was 35 pL min-1. The MIP film was prepared by electropolymerization of 0.3 mM bis(2,2 -bithienyl)-benzo-[18-crown-6]methane functional monomer and 0.3 mM 3,3 -bis[2,2 -bis(2,2 -bithiophene-5-yl)]thianaphthene cross-linking monomer, in the presence of 0.1 mM melamine, in the trihexyl(tetradecyl)phosphonium tris(pentafluor-oethy 1)-trifluorophosphate ionic liquid ACN (1 1 v/v) solution, which was 0.9 mM in trifluoroacetic acid (pH = 3.0). The melamine template was extracted from the MIP film with 0.01 M NaOH before the determinations (adapted from [134])...

Cyano-l,2,3-tris(difluoroamino)propane, 1428a Cyanuric acid, see 2,4,6-Trihydroxy-1,3,5-triazine, 1115 Cyanuric chloride, see 2,4,6-Trichloro-1,3,5-triazine, 1035 Cyclo-o%o-butadiynyl-2,3-dioxocyclobutenylidene, see Oligo(octacarbondioxide), 3103 f Cyclobutane, 1575... 

A reactive dye inclusion compound 1 (Figure 12) was prepared by condensing disodium salt of 7-[4-(methylamino)phenylazo]-2,4-naphthalenedisulfonic acid with cyanuric chloride and sodium 3-aminobenzenesulfonate (1 1 1) in the presence of hexaMs(2,3,6-tri-0-methyl)-a-cyclodextrin [41], Solutions of the bright yellow rotaxane 1 are more resistant to chemical bleaching than the uncomplexed dye. This compound anchored to mercerized cotton 2 also showed more photofading resistance [42],... 

New fire retardants not related to the chemistry of diphenyl ethers have been developed for more environmentally friendly applications.61-62 Among these newer compounds available for use in styrenic copolymers are a proprietary compound, brominated trimethylphenyl indan, brominated epoxy oligomers, and tris(tribromophenyl) cyanurate. 

Thermoplastic films from linear polyesters do not have good mechanical and chemical properties. These are obtained by cross-linking. The cross-linker used in our example is tri-glycidyl-iso-cyanurate or TGIC (Figure 10-5). It is a solid at room temperature, and made in the form of a powder. It has to be handled carefully because it is carcinogenic. The final polymer product is not ... 

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