3-aryl-5, 6-dihydro-1, 4, 2-oxathiazines and their oxides

Details 3-aryl-5, 6-dihydro-1, 4, 2-oxathiazines and their oxides 3-aryl-5, 6-dihydro-1, 4, 2-oxathiazines and their oxides

C - Chemistry, Metallurgy

07

D

260/243, 167/6.4

C07D 291/06 (2006.01) A01N 43/88 (2006.01) C07C 327/58 (2006.01) C07D 419/02 (2006.01) C07D 419/04 (2006.01) C07D 419/10 (2006.01)

Patent

CA 1273921

ABSTRACT OF THE DISCLOSURE Disclosed are derivatives of 3-aryl-5,6-dihydro-1,4,2-oxathi- azines and their oxides for use as herbicides, fungicides, plant dessicants and defoliants in agricultural and biocidal applications. Also disclosed are methods of making these compounds. The com- pounds have the formula Image wherein n = 0 , 1 or 2 R1 = hydrogen, C1-C4 linear or branched alkyl or benzyl R = phenyl or naphthyl phenyl substituted with 1-2 of the following groups: hydroxyl morpholinocarbonyl halo amino C1-C12 alkyl nitro C5-C6 cycloalkyl cyano trihalomethyl dioxolanyl phenyl pyridinyl C1-C5 alkoxy or alkylthio thienyl provided n is 0 or 1 tetrahydropyranyloxy furanyl phenoxy furanyl substituted with 1-3 of C2-C5 alkylcarbonyl the following groups: phenylcarbonyl C1-C4 alkyl C1-C4 alkylsulfinyl C2-C5 alkoxycarbonyl. C1-C4 alkylsulfonyI carboxy or its alkali metal salt C2-C5 alkoxycarbonyl C2-C5 alkylaminocarbonyl phenylaminocarbonyl tolylaminocarbonyl

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