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2 343 708

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(51)

IPC

A01N43/66(2006-01-01)

A01N47/36(2006-01-01)

A01N33/12(2006-01-01)

A01P13/00(2006-01-01)

(21) (22)

Application

2007131615/04, 2007-08-20

(24)

Start date

2007-08-20

(22)

Actual filing date

2007-08-20

(45)

Published

2009-01-20

(72)

Inventor

Savran Viktor IvanovichAndronnikov Vladimir VenjaminovichZhukov Nifantij ValentinovichMaksimov Viktor AleksandrovichSolov'Ev Nikolaj Mikhajlovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

HERBICIDAL COMPOUND PREPARATION METHOD Russian patent published in 2009 - IPC A01N43/66 A01N47/36 A01N33/12 A01P13/00

Abstract RU 2343708 C1

FIELD: agricultural industry.

SUBSTANCE: herbicidal compound preparation method includes diethyl ethanol amine salt of N-1,3,5-triazinyl aminocarbonyl arylsulfonamide as an active compound expressed by the general formula: , where R₁=Cl or COOCH₃; R₂=H or CH₃; R₃=OCH₃ or N(CH₃)₂; R₄=CH₃, ONC(CH₃)₂ or ONC(CH₃)C₂H₅, which are used in agricultural industry as herbicides and plant growth-regulating chemicals. Method includes condensation of arylsulphonyl isocyanate with substituted 1,3,5-aminotriazine in the organic solvent medium, treatment of reaction mixture containing N-1,3,5-triazinyl aminocarbonyl arylsulfonamide, and excess arylsulphonyl isocyanate and phosgene used as impurities, with aliphatic alcohol, and then with diethyl ethanol amine, water extraction of salt, cleaning filtration, separation of water layer and mixing of water layer containing the active compound with auxiliary components. Output is 98.3-99.6%.

EFFECT: improving product yield, manufacturing capacity and environmental safety of the process.

2 cl, 1 tbl, 23 ex

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RU 2 343 708 C1

Authors

Savran Viktor Ivanovich

Andronnikov Vladimir Venjaminovich

Zhukov Nifantij Valentinovich

Maksimov Viktor Aleksandrovich

Solov'Ev Nikolaj Mikhajlovich

Dates

2009-01-20—Published

2007-08-20—Filed