Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1979-11-21
1982-02-16
Hollrah, Glennon H.
Chemistry: fertilizers
Processes and products
Forms or conditioning
71 98, 71100, A01N 3744
Patent
active
043157696
ABSTRACT:
Diurethanes of the formula ##STR1## selectively damage or destroy weeds in crops of carrots, cotton, peanuts, and rice without damaging the crop plants when R.sub.1 is methyl or ethyl; R.sub.2 is propyl, butyl, isobutyl, or benzyl; R.sub.3 is hydrogen, methyl, ethyl, methoxy, or methylmercapto; and X is oxygen or sulfur.
REFERENCES:
patent: 3404975 (1968-10-01), Wilson et al.
patent: 3792994 (1974-02-01), Baker et al.
patent: 3901936 (1975-08-01), Boroschewski
patent: 4164414 (1979-08-01), Arndt et al.
patent: 4229208 (1980-10-01), Boroschewski et al.
Schering II, "N-alkyl-N-(carbarmoyloxyphenyl) carbamates", (1968) CA 71 No. 101513 v. (1969).
Arndt Friedrich
Boroschewski Gerhard
Hollrah Glennon H.
Schering AG
Striker Michael J.
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