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    • 2. 发明专利
    • BR7505689A
    • 1976-08-31
    • BR7505689
    • 1975-09-04
    • ICI LTD
    • BOWIE RCOX JFARRELL GSHEPHARD M
    • A01N47/04A01N43/90C07D487/04A01N9/22A01N9/12
    • Dihydrotetrazolo [1,5-a] quinazolines having the formula wherein (a) n is zero, X is oxygen, and R is optionally unsubstituted alkyl, alkenyl of at least 4 carbon atoms, alkynyl, aryl, aralkyl, alkylthio, cycloalkyl, amino or substituted aryl; or (b) n is 1 or 2, X is oxygen, R is hydrogen, or optionally-substituted alkyl, alkenyl, alkynyl, aryl, aralkyl, alkylthio, cycloalkyl, or amino, and R1 is hydroxy, halogen, nitro, alkyl or alkoxy or (c) n is zero, 1 or 2, X is sulphur, R is hydrogen, or optionally-substituted alkyl, alkenyl, alkynyl, aryl, aralkyl, alkylthio, cycloalkyl, or amino, and R1 is hydroxy, halogen, nitro, alkyl or alkoxy; or (d) n is 0, 1 or 2, X is NR2 where R2 is hydrogen, alkyl having 1 to 10 carbon atoms, benzyl or hydroxyalkyl, R is optionally-substituted alkyl, alkenyl, alkynyl, aryl, aralkyl, alkylthio, cycloalkyl, or amino, and R1 is hydroxy, halogen, nitro, alkyl or alkoxy; and salts thereof. These compounds demonstrate pesticidal activity.