Ciba-geigy Corporation

Syngenta Crop Protection, Inc.

Bayer Aktiengesellschaft

Novartis Corporation

Novartis Crop Protection, Inc.

Janssen Pharmaceutica

Novartis Corproation

Henry Szczepanski

Peter Maienfisch

Thomas Pitterna

Thomas Rapold

Dieter Durr

Anthony Cornelius O'Sullivan

Marcel Senn

Ottmar Franz H&uuml;ter

Hans-Georg Brunner

Rolf Schurter

Hermann Rempfler

Haukur Kristinsson

Werner Fory

Georg Pissiotas

Saleem Farooq

Otto Rohr

Thomas Maetzke

Ottmar Franz Huter

Thomas Gobel

Thomas G&ouml;bel

Beat Bohner

Henry Martin

André Stoller

Martin Zeller

Gottfried Seifert

Sebastian Volker Wendeborn

Urs Siegrist

Alfons Pascual

Josef Ehrenfreund

Stephan Trah

Roger Graham Hall

Hugo Ziegler

Beat Muller

Rene Eric Muntwyler

Peter J Diel

Rene Zurfluh

Johannes P Pachlatko

Roger G Hall

Lourens Wals

Alfons Lukaszczyk

Willy Meyer

Manfred Boger

Laurenz Gsell

Hans Tobler

Clemens Lamberth

Werner Topfl

Alain De Mesmaeker

Hans-Dieter Schneider

William R Lutz

Ren&eacute; Zurfl&uuml;h

Dagmar Berrer

Karl Gatzi

David John Wadsworth

Stephen Trah

Werner F&ouml;ry

Peter Mainenfisch

Ottmar Franz Hüter

Thomas Göbel

Franz Weibel

Manfred B Oger

Ren&eacute; Mutti

Karl Gotzi

A process is provided for preparing compounds having the general formula I wherein R is a range of organic groups and X is a leaving group. The process comprises reacting a compound of formula II with a water-removing reagent. When X is halogen or a sulfonate, the compound of formula I may be prepared by reacting a compound of the formula III with a halogenating agent or a sulfonylating agent. Alternatively, when X is halogen, the compound of formula I can be prepared by reacting a compound of the formula IV where R2 and R2 are defined organic groups, with a compound of the formula halogen-C(&#x2014;O)&#x2014;O&#x2014;C1-C8alkyl, halogen-C(&#x2014;O)&#x2014;O-aryl or halogen-C(&#x2014;O)&#x2014;O-benzyl.

Preparation of thiazoles

Compounds of formula wherein the substituents have the meanings given in claim, and agronomically tolerable salts, isomers and enantiomers of those compounds, are suitable for use as herbicides.

Herbicides

A process for the preparation of a compound of formula I wherein R is a range of organic groups and X is a leaving group which process comprises a) reacting a compound of the formula II where R is defined for formula (I) with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein K is halogen or a sulfonate, reacting a compound of the formula III where R is defined for formula (I) with a halogenating agent or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of the formula IV where R is as defined for formula (I) and R2 and R3 are defined organic groups with a compound of the formula halogen-C(&#x2014;O)&#x2014;O&#x2014;C1-C8alkyl, halogen-C(&#x2014;O)&#x2014;O-aryl or halogen-C(&#x2014;O)&#x2014;O-benzyl.

The present invention is directed to a process for preparing a compound having the formula: wherein R is a range of organic groups and X is a leaving group. The process may include reacting a compound of the formula with a water-removing reagent. Also, when X is a halogen, the process may include reacting a compound of the formula with a halogenating agent or a sulfonylating agent. Alternatively, when X is a halogen, the process may be carried out by reacting a compound of the formula IV where Rand Rare defined organic groups with a compound of the formula halogen-C(&#x2014;O)&#x2014;O&#x2014;C1 -C8alkyl, halogen-C(&#x2014;O)&#x2014;O-aryl or halogen-C(&#x2014;O)&#x2014;O-benzyl.

Described is a process for the preparation of a compound of the formula wherein R is unsubstituted or substituted C&#x2013;Calkyl, C&#x2013;Calkenyl, C&#x2013;Calkynyl, C&#x2013;Ccycloalkyl, aryl or heteroaryl, or &#x2014;SR; wherein R is as defined for formula (I), with a water removing reagent.

Compounds of formulawherein the substituents have the meanings given in claim 1, and agronomically tolerable salts, isomers and enantiomer of those compounds, are suitable for use as herbicides.

The invention relates to novel pesticidally active &#x3b1;-sulfin- and &#x3b1;-sulfonamino acid amides of the general formula (I) including the optical isomers thereof and mixtures of such isomers, wherein n is a number zero or one, R-Rhave the meanings given in the specification. Ris either hydrogen, (a), (b), (c), (d) or (e) wherein R, R, R, Rand Rare each independently hydrogen or C-Calkyl, Ris C-Calkyl; C-Chalogenalkyl; C-Ccycloalkyl; optionally substituted aryl or optionally substituted heteroaryl, Ris optionally substituted aryl or optionally substituted heteroaryl; and Z is oxygen, sulfur &#x2014;CRR&#x2014; or &#x2014;NR&#x2014;, wherein R, R, Rindependently of each other are hydrogen or C-Calkyl. The novel compounds possess plant-protecting properties and are suitable for protecting plants against infestation by phytopathogenic microorganisms

&#x3b1;-Sulfin and &#x3b1;-Sulfonamino amide derivatives

Process for the preparation of thiazole derivatives

Process for the preparation of herbicidal derivatives

Described is a process for the preparation of a compound of formula (I) wherein R is unsubstituted or substituted C -C alkyl, C -C alkenyl, C -C alkynyl, C -C cycloalkyl, aryl or heteroaryl, or &mdash;SR ; R is unsubstituted or substituted C -C alkyl, C -C alkenyl, C -C alkynyl, cycloalkyl, aryl or heteroaryl; and X is a leaving group; which comprises: a) reacting a compound of formula (II) wherein R is as defined for formula (I), with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein X is halogen or a sulfonate, reacting a compound of the formula (III) wherein R is as defined for formula (I), with a halogenating or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of formula (IV) wherein R is as defined for formula (I); and wherein R and R are for example H, C -C alkyl, C -C cycloalkyl, phenyl or benzyl; with a compound of the formula halogen-C(&boxH;O)&mdash;O&mdash;C -C alkyl, halogen-C(&boxH;O)&mdash;O-aryl or halogen-C(&boxH;O)&mdash;O-benzyl. Intermediates for the preparation of the synthesis of compounds (II) to (IV) and method of the preparation thereof.

Process for the preparation of nitroguanidine derivatives

Pesticides

Dihydrobenzene pesticides

Growing community of inventors

Wallbach, Switzerland

Henry Szczepanski