Certain pyridyloxy or thio-phenoxy-propanoic acids or salts ther

Chemistry: fertilizers – Processes and products – Forms or conditioning

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546302, 546300, 546291, 546286, 546294, 546326, 546327, 546345, A01N 4340, C07D21364

Patent

active

046785094

ABSTRACT:
Certain novel pyridinyloxyphenoxy alkanoic acids, pyridinylthiophenoxy alkanoic acids, derivatives thereof and related compounds are described. More specifically, these novel compounds bear a fluorine substituent in the 3-position of the pyridinyl group and in the 5-position the substituent is selected from chlorine, CF.sub.3, CF.sub.2 Cl or CF.sub.2 H. These novel compounds exhibit surprising preemergent and postemergent activity in the control of grassy weeds.

REFERENCES:
patent: 4302242 (1981-11-01), Cartwright
patent: 4401459 (1983-08-01), Satomi et al.

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