1,3,4-thiadiazolyl ureas and processes for controlling weeds and

Details 1,3,4-thiadiazolyl ureas and processes for controlling weeds and 1,3,4-thiadiazolyl ureas and processes for controlling weeds and

1968-12-20

1987-08-11

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

71 90, C07D28512

Patent

active

046862943

ABSTRACT:
Compounds of the formula ##STR1## are described in which R.sub.1 represents a perfluoroalkyl radical of from 1 to 2 carbon atoms, and at least one of R.sub.2 and R.sub.3 represents hydrogen, and the other, or both represent lower alkyl, and R.sub.4 represents a lower alkyl radical which may be unsubstituted or bear certain substitution, and which are useful as herbicides in a method for controlling weeds and wild grasses. Compositions containing such compounds are also described. Finally, novel fluoro-thio semicarbazides are described which are useful intermediates in the production of the compounds of Formula I.

REFERENCES:
patent: 3288851 (1966-11-01), Martin et al.
patent: 3304167 (1967-02-01), Buntin et al.

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