Pyrazolone derivatives and their use as herbicides

Details Pyrazolone derivatives and their use as herbicides Pyrazolone derivatives and their use as herbicides

1976-08-12

1977-07-19

Moyer, Donald B.

Chemistry: fertilizers

Processes and products

Forms or conditioning

260310A, A01N 922, C07D23120

Patent

active

040366316

ABSTRACT:
Pyrazolone compounds of the formula ##STR1## WHEREIN R.sub.1 represents a hydrogen atom or a lower alkyl group, R.sub.2 represents a lower alkyl group or a lower alkenyl group, X represents a halogen atom, Y represents a halogen atom, a nitro group, a lower alkyl group or a lower alkoxy group, n is an integer of 1 to 3 and when n is 2 or 3, Y's may be the same or different. These compounds are useful as herbicides and obtainable by reacting the corresponding 5-pyrazolone derivatives with a halogenating agent.

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