Herbicidal ethynyl-phenylureas

Details Herbicidal ethynyl-phenylureas Herbicidal ethynyl-phenylureas

1983-07-11

1985-05-28

Jiles, Henry R.

Chemistry: fertilizers

Processes and products

Forms or conditioning

260455A, 260453RW, 564100, 564 48, 564 50, 564 51, 564 52, 564 53, 564 54, 564 55, 71111, 71120, 560 29, 560 30, 560 22, 560 24, 560 27, 560 34, A01N 3700, A01N 3744, A01N 4730, C07C15502

Patent

active

045198349

ABSTRACT:
The ethynyl-phenylureas of the formula I ##STR1## wherein X is hydrogen, halogen, lower alkyl, lower alkoxy, haloalkyl or nitro, Y is oxygen or sulfur, R.sub.1 is hydrogen, alkyl, alkoxy, alkenyl, phenyl or benzyl, R.sub.2 is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl or benzyl, R.sub.1 and R.sub.2 together with the nitrogen atom to which they are bound are also a pyrrolidine, piperidine, morpholino or piperazine ring, R.sub.3 is hydrogen or lower alkyl, and R.sub.4 is hydrogen, alkyl, phenyl, pyridyl, alkenyl, cycloalkyl or cycloalkenyl, are novel substances. They are characterized by strong herbicidal activity.

REFERENCES:
patent: 3332988 (1967-07-01), Mull

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