Certain substituted 3-amino-2-benzoylcyclohex-2- enones

Abstract From the Canadian patent

Abstract of the Disclosure, A herbicidal compound of the formula wherein R is halogen, C1-C2 alkyl, C1-C2 alkoxy nitro; cyano; C1-C2 halo-, alkyl, or RaSOn- wherein n is 0 or 2 and Ra is C1-C2 alkyl; R1 is hydrogen or C1-C4 alkyl; R2 is hydrogen or C1-C4 alkyl; or R1 and R2 together are alkylene having 2 to 5 carbon atoms; R3 is hydrogen or C1-C4 alkyl; R4 is hydrogen or C1-C4 alkyl; or R3 and R4 are oxo; RS is hydrogen or C1-C4 alkyl; R6 is hydrogen or C1-C4 alkyl; and R7 and R8 independently are (1) hydrogen; (2) halogen; (3) C1-C4 alkyl; (4) C1-C4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C1-C4 haloalkyl; (9) RbSOn- wherein n is the integer 0, 1 or 2; and Rb is (a) C1-C4 …