C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/299, 71/8.4
C07D 487/04 (2006.01)
Patent
CA 1080717
ABSTRACT OF THE DISCLOSURE The invention relates to novel dihydroimidazoisoindoledione com- pounds and the optical and stereo isomers thereof. This invention also re- lates to a method for the control of undesirable plant species with the di- hydroimidazoisoindolediones and their optical and stereo isomers, and further, to a process for the preparation of the compounds. The novel compounds are those of the formula Image wherein X is H, CH3, NO2, C1, OCH3 or SCH3; R1 is alkyl C1-C4; R2 is alkyl C1-C6, cycloalkyl C3-C6, alkenyl C2-C4, phenyl, halophenyl or benzyl; and when R1 and R2 are taken together with the carbon to which they are attached they may form cycloalkyl C3-C6 optionally substituted with methyl; Y is hydro- gen, -NR3R4, -OR5 or -SR6; and R3, R4, R5 and R6 are each hydrogen or alkyl C1-C4; and the optical and stereo isomers thereof.
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