Basf Aktiengesellschaft

American Cyanamid Company

Leslie May

Henry Van Tuyl Cotter

Ewald Gerhard Sieverding

Waldemar F Pfrengle

Guido Albert

Klaus-Juergen Pees

Annerose Edith Rehnig

Guenter Krummel

Gunter Reichert

Henry Van Cotter

Michael Aven

The novel compounds of formula I:wherein (R, R, Hal and Lthrough Lare defined in the specification) show selective fungicidal activity. The new compounds may be processed with carriers and adjuvants to produce fungicidal compositions.

Fungicidal trifluoromethylalkylamino-triazolopyrimidines

The novel compounds of formula I: wherein

Fungicidal mixtures

Adjuvants selected from liquid polyalkoxylated aliphatic alcohols, solid sodium hydrocarbyl sulfonates and polyalkoxylated trisiloxanes enhance the efficacy of fungicidal triazolopyrimidines. They can be incorporated into formulations of the fungicidal compounds or be added to spray mixtures (tank mix) as separately formulated additives in order to improve the efficacy, systemicity and spectrum of these fungicides.

Enhancement of the efficacy of triazolopyrimidines

The novel compounds of formula I: ##STR1## wherein R.sup.1, R.sup.2, Hal and L.sup.1 through L.sup.5, are defined in the specification show selective fungicidal activity.

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Wokingham, United Kingdom

Leslie May