30894-75-8

Upstream product

• 108-77-0 1,3,5-trichloro-2,4,6-triazine 
• 64-17-5 ethanol 
• 18343-30-1 2,4-dichloro-6-ethoxy-1,3,5-triazine 

Relevant academic research and scientific papers

METHOD FOR THE INDUSTRIAL PRODUCTION OF 2-HALO -4,6-DIALKOXY-1,3,5-TRIAZINES AND THEIR USE IN THE PRESENCE OF AMINES

A method for stabilization of collagen matrices and of condensation of natural and synthetic polymers that uses 2-halo-4, 6-dialkoxy-1, 3, 5-triazines in the presence of one or more amines as activating agents for reactions of crosslinking, condensation, grafting, and curing of collagen matrices, cellulose, modified celluloses, polysaccharides, acid unsaturated polymers, and chiral and non-chiral amines, etc. Forming an integral part of the present invention is also the method for production on an industrial scale of 2-halo-4, 6-dialkoxy-1, 3, 5-triazines.

Novel dialkoxytriazine-type glycosyl donors for cellulase-catalysed lactosylation

Novel glycosidic compounds, 4,6-dialkoxy-1,3,5-triazin-2-yl β-lactosides (DAT-β-Lac), have been prepared directly in water from lactose. The reaction was carried out on a laboratory scale without protecting the hydroxy groups of lactose. The resulting triazine derivatives were found to be recognized by endo-β1,4-glucanase III from Trichoderma reesei (EGIII). The EGIII-catalysed transglycosylation of 4,6-dimethoxy-1,3,5-triazine derivative (DMT-β-Lac) with various glycosyl acceptors has successfully been demonstrated, affording the corresponding lactosylated products.

Processes for preparing triazine compounds and quaternary ammonium salts

In the process of the invention to prepare 4,6-dialkoxy-1,3,5-triazine-2-halide by reacting a cyanuric halide with an alcohol compound such as methanol in the presence of an alkali such as sodium hydrogencarbonate, the water content present in the reaction system at the beginning of the reaction is controlled to not more than 0.5 mol based on 1 mol of the cyanuric halide or the water content present in the reaction system during the period of the reaction is controlled to not more than 2.5 mol based on 1 mol of the cyanuric halide. According to the invention, 4,6-dialkoxy-1,3,5-triazine-2-halide can be prepared in a high yield.

Selective amination of cyanuric chloride in the presence of 18-crown-6

An interpretation of the role of 18-crown-6 in the selective di- and trialkylamination of 2,4,6-trichloro-1,3,5-triazine is reported, and the usefulness of the procedure is shown. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.

Selective mono- or dialkoxylation of 2,4,6-trichloro-1,3,5-triazine in solid-liquid phase transfer conditions

In solid-liquid phase transfer conditions, both the primary and the secondary alcohols react cleanly with 2,4, 6-trichloro-1,3,5-triazine to give the corresponding mono or dialkoxy derivatives depending on the reagent molar ratio.

KINETICS OF FORMATION OF MONOALKOXY-s-TRIAZINES FROM CYANURIC CHLORIDE.

2-R-alkoxy-4,6-dichloro-s-triazines (I) are used as intermediates for synthesis of herbicides, and are obtained by reactions of 2,4, 6-trichloro-s-triazine (II) (cyanuric chloride) with various alcohols in aqueous-organic mixtures in presence of hydrogen chloride acceptors. The purpose of this work was to study the quantitive relationships of the main reaction of cyanuric chloride alkoxylation and of the competing reactions of hydrolysis and alkoxylation of compound (I), for optimization of production of monoalkoxy-s-triazines. It is found that the reaction temperature has a significant influence on the yield of 2-(2-R-ethoxy)-4, 6-dichloro-s-triazine; decrease of temperature raises the yield of (I) owing to decrease of the contributions of hydrolysis of compounds (I) and (II) and alkoxylation of (I). The asolute values of the rate constants of hydrolysis (k//3, k//4) and alkoxylation (k//2) decrease more rapidly than k//1 with decrease of temperature. This makes it possible to raise the selectivity of the process by raising the alkali concentration and lowering the reaction temperature.

HALOGENATED ETHERS. XXIII. EFFECT OF TEMPERATURE AND SUBSTITUENTS ON THE KINETICS OF THE FORMATION OF 2,4-DI(2-R-ETHOXY)-6-CHLORO-sym-TRIAZINES

The effect of temperature and substituents on the kinetics of the reaction of 2-(2-R-ethoxy)-4,6-dichloro-sym-triazines with 2-R-ethanols in the presence of alkali was investigated.Variation of the substituent has practically no effect on the rate of hydrolysis of 2-(2-R-ethoxy)-4,6-dichloro-sym-triazines.The rate constant for the formation of 2,4-di(2-R-ethoxy)-6-chloro-sym-triazines is half that for the formation of 2-(2-R-ethoxy)-4,6-dichloro-sym-triazines.