Dow Agrosciences LLC

Other

Dow Global Technolgoies LLC

W. R. Grace Co.-conn.

Dowelanco

University of Michigan

Corteva Agriscience LLC

Gary A Roth

Qiang Yang

Beth Lorsbach

Kaitlyn C Gray

Gregory T Whiteker

Yu Zhang

Carl Vincent DeAmicis

Joseck M Muhuhi

Ronald Ross, Jr

David E Podhorez

Xiaoyong Li

Yuanming Zhu

Thomas P Clark

Scott P West

James M Renga

Noormohamed Mohamed Niyaz

Greg Whiteker

Kim Eric Arndt

Belgin Canturk

Elisabeth J Kane

Jeffrey S Nissen

Daniel Knueppel

Yang Cheng

Douglas Bland

Christopher Thomas Hamilton

Ann Marie Buysse

Matthias Stefan Ober

Peter S Borromeo

Patrick S Hanley

Nicholas R Babij

Craig Bott

Tina Staton

Ronald Ross

Thomas L Siddall

Tak W Leung

Christian Thomas Lowe

Nakyen Choy

Erich J Molitor

Michael Gullo

Michael Allen Gonzalez

Grant Von Wald

Nicole Hough

Carl Deamicis

Michael Rack

Joachim Gebhardt

Linfeng Chen

Guido Mayer

David Craig Molzahn

Hagen Jaedicke

Norbert Götz

Tao Tao

Jon A Orvik

Mark Andrew Pobanz

Fangzheng Li

Timothy J Adaway

Karl L Krumel

Larry D Kershner

Melanie S Sanford

Kuanqiang Gao

Alexander P Fung

Jimmy J Tai

Mark Allen Hadd

Patrick T McGough

James R McConnell

David Bruce Gorman

Yan Hao

Christopher W Derstine

Douglas L Pearson

Stacie L Santhany

Carl DeAMICIS

Dawn L Shiang

Mark Muehlfeld

Clark C Williams

Sarah Ryan

Laura Allen

Julie L Maurer

Carmen A Scott

Joseph C Neuman

Thomas A Olmstead

Ian R King

Shin Hee Lee

Mark Victor Michael Emonds

Jeff T Budd

Tim J Adaway

Michael Glenn Smith

Clark S Davis

Ron B Leng

Timothy Adaway

Christopher Hamilton

Jr Ronald Ross

Christopher T Hamilton

Peter Borromeo

Melanie Sanford

David C Molzahn

Matthias S Ober

Douglas C Bland

Provided herein is a process for the preparation of 4-((6-(2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(5-mercapto-1H-1,2,4-triazol-1-yl)propyl)pyridin-3-yl)oxy)benzonitrile.

4-((6-(2-(2,4-difluorophenyl)-1,1-difluoro-2-hydroxy-3-(5-mercapto-1h-1,2,4-triazol-1-yl)propyl)pyridin-3-yl)oxy)benzonitrile and processes of preparation

A fungicidal 4-methoxy-3-acetyloxypicolinamide may be conveniently prepared in processes that include the coupling together of 4-methoxy-3-acetyloxypicolinic acid or 4-methoxy-3-hydroxypicolinic acid with a key 2-aminopropanoate ester derived from a 1,1-bis(4-fluorophenyl)propane-1,2-diol.

Processes for the preparation of 4-alkoxy-3-(acyl or alkyl)oxypicolinamdes

The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.

Processes for the preparation of pesticidal compounds

4-Alkoxy-3-hydroxypicolinic acids may be conveniently prepared from 4,6-dibromo-3-hydroxypicolinonitrile in a series of chemical steps selected from bromo substitution, nitrile hydrolysis and halogen reduction that are conducted as a single pot process. 4,6-Dibromo-3-hydroxypicolinonitrile may be prepared from furfural in a series of chemical steps selected from cyano-amination, amine salt formation and bromination-rearrangement. 4-Alkoxy-3-acetoxypicolinic acids may be conveniently prepared from 4-alkoxy-3-hydroxypicolinic acids by treatment with acetic anhydride.

Process for the preparation of 4-alkoxy-3-acetoxypicolinic acids

This application relates to efficient and economical synthetic chemical processes for the preparation of pesticidal thioethers. Further, the present application relates to certain novel compounds useful in the preparation of pesticidal thioethers. Specifically, this application relates to a process for the preparation of 3-chloro-1H-pyrazol-4-amine and salts thereof. More particularly, this application relates to a process for the preparation of 3-chloro-1H-pyrazol-4-amine and salts thereof by halogenating and reducing 4-nitropyrazole.

Processes for the preparation of pesticide compounds

This application relates to efficient and economical synthetic chemical processes for the preparation of pesticidal thioethers and pesticidal sulfoxides. Further, the present application relates to certain novel compounds necessary for their synthesis. It would be advantageous to produce pesticidal thioethers and pesticidal sulfoxides efficiently and in high yield from commercially available starting materials.

3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with commercially available 3-ethoxyacrylonitrile to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.

Process for the preparation of 3-(3-chloro-1h-pyrazol-1-yl)pyridine

3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine-dihydrochloride with commercially available 3-ethoxyacrylonitrile to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.

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Gary A Roth