Basf Aktiengesellschaft

American Cyanamid Company

Günter Krummel

Eberhard Ammermann

Gisela Lorenz

Hubert Sauter

Siegfried Strathmann

Wassilios Grammenos

Thomas Grote

Joachim Rheinheimer

Markus Gewehr

Reinhard Stierl

Peter Schäfer

Andreas Gypser

Bernd Müller

Jordi Tormo I Blasco

Frank Schieweck

Ingo Rose

Klaus-Jurgen Pees

Peter Heinz Liers

Karl-Otto Stumm

The invention relates to 7-amino triazolopyrimidines of formula (I), in which the substituents have the following meanings: R, Rrepresent hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, naphthyl; or 5-membered or 6-membered heterocyclyl containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom; or 5-membered or 6-membered heteroaryl containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom, or Rand Rcan, together with the nitrogen atom, which binds them, form a 5-membered or 6-membered ring containing one to four nitrogen atoms or one to three nitrogen atoms and one sulfur or oxygen atom; Rrepresents alkyl, alkenyl, alkynyl, cycloalkyl, phenylalkyl and alkyl halide; whereby Rand Rcan be unsubstituted or partially or completely substituted according to the description; X represents halogen, cyano, alkoxy, alkyl halide, phenyl or phenyl that is substituted by R. The invention also relates to methods and intermediate products for producing said compounds, to agents containing the same, and to their use.

7-amino triazolopyrimidines for controlling harmful fungi

An effective and efficient process for the preparation of a dihaloazolopyrimidine having the structural formula ##STR1## In this process, a malonic acid ester is reacted with a heterocyclylamine to form an intermediate salt, which optionally may be acidified to form a dihydroxyazolopyrimidine; the salt or the dihydroxyazolopyrimidine is then halogenated.

Process for the preparation of dihaloazolopyrimidines

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Vendersheim, Germany

Günter Krummel