N-Phenyl-N-methyl-urea derivatives, and their production and use

Details N-Phenyl-N-methyl-urea derivatives, and their production and use N-Phenyl-N-methyl-urea derivatives, and their production and use

1978-06-27

1981-02-10

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 91, 71 93, 71111, 71115, 71116, 71117, 71120, 260453RW, 564 52, A01N 4730, A01N 3108, C07C11920, C07C12719

Patent

active

042499380

ABSTRACT:
An N'-phenyl-N-methyl-urea derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, lower alkyl, lower alkoxy, lower alkylthio, halogen or trifluoromethyl, R.sup.4 is hydrogen or lower alkyl, A is methyl or methoxy, X is oxygen or sulfur, Y is hydrogen or halogen, Z is a straight or branched alkylene chain having not more than 8 carbon atoms which may have no less than one atom of oxygen and/or sulfur inside and/or at the end of the alkylene chain and n is an integer of 1 to 3, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of crop plants without any material toxicity to mammals or fish or any chemical injury to said crop plants.

REFERENCES:
patent: 3252783 (1966-05-01), Newcomer et al.
patent: 3819697 (1974-06-01), Cross
patent: 4123256 (1978-10-01), Yoshida et al.
patent: 4129436 (1978-12-01), Takemoto et al.

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