METHOD FOR PRODUCTION OF SUBSTITUTED N-(1,3,5-TRIAZINE-2-YL)AMINOCARBONYL SULFONE AMIDES Russian patent published in 1998 - IPC

FIELD: organic chemistry; agriculture, namely production of herbicides and growth regulators for plants. SUBSTANCE: substituted N-(1,3,5-triazine-2-yl)aminocarbonyl sulfone amides having common formula where R₁ is Cl or COOCH₃; R₂ is =OCH₃ or N(CH₃)₂; R₃ is CH₃ or ON=C(CH₃)₂, ON=C(CH₃)C₂H₅; R₄ is H, CH₃ are prepared by stepped phosgenation of corresponding arylsulfone amides and mixture of amines as catalyst. Initially the process is carried out at 15-25 C in the presence of diethyl ethanolamine. Then phosgenation take places at 60-70 C and at 125-135 C when primary and tertiary amines are fed, the process is followed by interaction of thus prepared arylsulonyl isocyanate and products of phosgenation of amines with amine heterocycle. Molar ratio of primary amine, tertiary amine, diethyl ethanolamine to arylsulfone amide is 0.015:0.017: 0.012-0.014: 0.015-0.017: 1 respectively. EFFECT: increased yield of desired product; improved quality of desired product.