Syngenta Crop Protection, Inc.

Novartis Corporation

Ciba-Geigy Corporation

Syngenta Investment Corporation

Syngenta Investment Corportion

Syngenta Participations Ag

Syngenta Corporation

Beat Jau

Walter Kunz

Martin Charles Bowden

Martin Zeller

Gottfried Seifert

Fanny Giordano

Linhua Wang

Dominik Faber

Rudolf Waditschatka

Wolfgang Stutz

Bernhard Urwyler

Juerg Wiss

Marian Parak

Colin Ellis

Hans-Dieter Schneider

Thomas Aitcheson Clark

Sebastien Burki

Remy Gressly

Matthias Von Frieling

Klas Winter

Fanny Delphine Brigtte Giordano

A process for the preparation of a compound of formula (I), the process comprising: (i) the reaction of a compound of formula (III), with a compound of formula (IV) to give a compound of formula (II), and (ii) the reaction of the compound of formula (II) with a leaving group, to give the compound of formula (I).

Process for the synthesis of mandipropamid and derivatives thereof

The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction. 

Process for the production of substituted bromobenzenes

A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of N,N'-diacyl-hydrazines with 2,2&#x2032;-disubstituted diethyl ethers to form 4,5-diacyl-[1,4,5]-oxadiazepines and reaction of the latter compounds with a hydrohalic acid.

Process for the preparation of [1,4,5]-oxadiazepine derivatives

Process for preparing 4,6-dimethoxy-2-(methylsulfonyl)-1,3-pyrimidine by reacting 4,6dichloro-2-(methyltio)-1,3-pyrimidine in an inert organic solvent with an alkali metal methoxide, transfer of the resulting 4,6-dimethoxy-2-(methylthio)-1,3-pyrimidine into an aqueous-acidic medium and subsequent oxidation of this compound, of appropriate in the presence of a catalyst, wherein the oxidation is followed by a purification step in which the aqueous-acidic reaction mixture is adjusted with aqueous base to a pH in the range of 5-8 and stirred either in the presence or in the absence of an organic solvent, and the use of this compound for preparing herbicides, for example 7-&lsqb;(4,6-dimethoxy-pyrimidin-2-yl)thio&rsqb;-3-methylphthalide.

Process for the preparation of 4,6-dimethoxy-2-(methylsulfonyl)-1,3-pyrimidine

3-amino-2-mercaptobenzoic acid derivatives and processes for their preparation

Compounds of the formula I ##STR1## and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III ##STR2## In the compounds of the formulae I and III: X is halogen,

3-amino-2-mercaptobenzoic acid derivatives and processes for their

3-Amino-2-mercaptobenzoic acid derivatives and processes for their

A process for the preparation of 3-hydroxyoxetanes of formula I ##STR1## wherein R.sub.9 and R.sub.10 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl, by

Process for the preparation of 3-hydroxyoxetanes

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Aesch, Switzerland

Beat Jau