METHOD OF SYNTHESIS OF 2-ALKYLTHIO-4,6-BIS-(ALKYLAMINO)-1,3,5-TRIAZINES Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: products: substituted triazines of the general formula (I) where R₁-CH₃, C₂H₅; R₂-CH₃, C₂H₅,. Synthesis of substituted triazines is carried out by chlorine exchange for alkylmercapto-group in compounds of the general formulas CH(CH₃)₂; R₃-C₂H₅, CH(CH₃)₂, C(CH₃)₃, (II) and -SNa (III) in the presence of catalyst of the formula (IV) R_аR_бR_вR_гN⁶·X^- where R_a-C₂H₅, н-C₄H₉;; R_б-C₂H₅, н-C₃H₇,, н-C₄H₉; R_в-C₂H₅,, cyclohexyl; н-C₃H₇, н-C₄H₉,, mixture of R_г-н-C₄H₉, н-С₁₀H₃₃,; X bromine, iodine. Catalyst is used at concentration 0.5-3 wt. -% of initial (II) н-C₁₆H₃₃-н-С₂₀H₄₂;, and process is carried out in aqueous medium at 80-93 C. The yield of substituted triazines is 99-97% the content of the basic substance is up to 99.3% Process is carried out at lower temperature and under atmospheric pressure as compared with known method. Synthesized compounds were used as components of herbicides. EFFECT: simplified process, decreased energy consumption. 3 tbl