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C07D267/00—Heterocyclic compounds containing rings of more than six members having one nitrogen atom and one oxygen atom as the only ring hetero atoms
C07D267/22—Eight-membered rings
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Organic Chemistry
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Agricultural Chemicals And Associated Chemicals
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Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
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Abstract
Substd. 6-phenyl-1,3,4,6-tetrahydro-2H-5,1-benzooxazozine-2-ones Cpds. of formula I, where R is H, hal, alkyl, or NO2 and R' is H or (1-2C) alkyl are useful oral fungicides. I are prepd. by dehydrohalogenation of cpds. of formula II, where X = Hal.