Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1976-04-07
1978-05-30
Hollrah, Glennon H.
Chemistry: fertilizers
Processes and products
Forms or conditioning
71 76, 71 88, 71105, 71122, 71123, 2603403, 260586R, A01N 924
Patent
active
040921468
ABSTRACT:
Certain esters of 1-hydroxy-cyclobutene-3,4-dione and mono- and diesters of square acid have been found to be useful in the regulation of plant growth, especially as post-emergent herbicides, as plant growth inhibitors and desiccants.
New esters of this type and their manufacture are also described.
REFERENCES:
patent: 2349772 (1944-05-01), ter Horst
patent: 2855439 (1958-10-01), Kundiger et al.
patent: 2894989 (1959-07-01), Pratt et al.
patent: 2908692 (1959-10-01), Richert
patent: 3737298 (1973-06-01), Fielding
patent: 3803240 (1974-04-01), Durden et al.
Maahs, "Preparations and reactions of, etc.;" (1965) CA 63, pp. 11373-11375 (1965).
Cohen et al., "Preparation and Reactions of, etc." (1965) J.A.C.S. 88, pp. 1533-1536 (1965).
Bellus Daniel
Fischer Hanspeter
Ciba-Geigy Corporation
Hollrah Glennon H.
Rabin Frederick H.
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