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2 545 074

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IPC

C07D213/04(2006-01-01)

A01N43/40(2006-01-01)

A01P13/02(2006-01-01)

(21) (22)

Application

2013139338/04, 2012-01-24

(24)

Start date

2012-01-24

(22)

Actual filing date

2012-01-24

(45)

Published

2015-03-27

(72)

Inventor

Uajteker Gregori T.Arndt Kim Eh.Renga Dzhejms M.Chzhu Juan'MinLou Kristian T.Siddall Tomas L.Podkhores Dehvid E.Rot Gari AlanVest Skott P.

(73)

Holder

Dau Agrosajensiz Ehlehlsi

METHOD OF OBTAINING 4-AMINO-5-FLUORO-3-HALOGEN-6-(SUBSTITUTED)PICOLINATES Russian patent published in 2015 - IPC C07D213/04 A01N43/40 A01P13/02

Abstract RU 2545074 C1

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining 4-amino-5-fluoro-3-halogen-6-(substituted)picolinate of formula I , where W represents Cl, Br or I; R represents C₁-C₄ alkyl, cyclopropyl, C₂-C₄ alkenyl or phenyl, substituted with 1-4 substituents, independently selected from halogen, C₁-C₄ alkyl, C₁-C₄ halogenalkyl, C₁-C₄ alkoxy or C₁-C₄ halogenalkoxy; and R¹ represents C₁-C₁₂ alkyl or non-substituted C₇-C₁₁ arylalkyl; which includes the following stages: fluorine exchange, amination, halogen exchange, halogenation and binding by means of transition metal.

EFFECT: method improvement.

7 cl, 6 ex

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RU 2 545 074 C1

Authors

Uajteker Gregori T.

Arndt Kim Eh.

Renga Dzhejms M.

Chzhu Juan'Min

Lou Kristian T.

Siddall Tomas L.

Podkhores Dehvid E.

Rot Gari Alan

Vest Skott P.

Dates

2015-03-27—Published

2012-01-24—Filed