Herbicidal N-[4-(3'-alkoxyphenoxy)-phenyl]-N'-methylureas

Details Herbicidal N-[4-(3'-alkoxyphenoxy)-phenyl]-N'-methylureas Herbicidal N-[4-(3'-alkoxyphenoxy)-phenyl]-N'-methylureas

1981-03-06

1983-03-15

Waltz, Thomas A.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 88, 71 90, 71 92, 71 94, 71 95, 71 98, 71103, 71105, 71106, 260453RW, 260456A, 260465D, 560251, 564 49, 564 51, 564 52, A01N 920, C07C12719

Patent

active

043766463

ABSTRACT:
Novel ureas of the formula I have herbicidal activity and are suitable in small applied amounts for selectively combating weeds in cultivated crops of soya-bean, maize and cereals. They are advantgeously produced by the isocyanate method and correspond to the formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, aralkyl, phenyl, acyl or C.sub.1 -C.sub.4 -alkylsulfonyl group or an aminoalkyl group,

REFERENCES:
patent: 3060235 (1962-10-01), Martin et al.
patent: 3707557 (1972-12-01), Brown
patent: 3819697 (1974-06-01), Cross
patent: 3933814 (1976-01-01), Haberkorn et al.
patent: 4080193 (1978-03-01), Rohe et al.
patent: 4087272 (1978-05-01), Rohe et al.
patent: 4249938 (1981-02-01), Takemoto et al.
patent: 4260411 (1981-04-01), Yoshida et al.
patent: 4279637 (1981-07-01), Wu

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