Syngenta Participations Ag

Syngenta Corporation

Alan James Robinson

Helmars Smits

Edouard Godineau

George Robert Hodges

Michel Muehlebach

Tomas Smejkal

Sophie Pelletier

Jochen Weckesser

Lisa Mitchell

Denis Gribkov

Regis Jean Georges Mondiere

Dominik Faber

Régis Jean Georges Mondiere

Christopher Charles Scarborough

Michael Christian Dieckmann

Andrew Charles Shaw

The present invention provides, inter alia, a process for producing a compound of Formula (I): wherein A, R, R, R, R, Rand Rare as defined herein. The present invention further provides intermediate compounds utilised in said process, and methods for producing said intermediate compounds. 

Process for producing herbicidal pyridazinone compounds

A process for making certain spiroheterocyclic pyrrolidine dione derivatives.

Process for the preparation of a spiroheterocyclic pyrrolidine dione

Process for the preparation of spiroheterocyclic pyrrolidine diones

The present invention relates to methods of initiating a reaction represented by scheme 1 wherein Q is optionally substituted aryl or optionally substituted heteroaryl; X is halogen or a sulphonate; P is an organic radical; R is hydrogen or an organic radical; wherein the catalyst comprises copper and a ligand; comprising providing the compound of formula III in liquid form prior to contacting the compound of formula III with the catalyst.

Methods for the preparation of aryl amides

The invention relates to a process for the preparation of formula (I) which process comprises pyrolyzing a compound of formula (II) wherein X is chloro or bromo, and to compounds which may be used as intermediates for the manufacture of the compound of formula I and to the preparation of said intermediates. 

Process for the preparation of dichlorofulvene

The present invention relates to methods of initiating a reaction represented by scheme (1), wherein Q is optionally substituted aryl or optionally substituted heteroaryl; X is halogen or a sulphonate; P is an organic radical; R is hydrogen or an organic radical; wherein the catalyst comprises copper and a ligand; comprising providing the compound of formula III in liquid form prior to contacting the compound of formula III with the catalyst. 

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Muenchwilen, Switzerland

Alan James Robinson