Styrene derivatives useful as herbicides and defoliants

Details Styrene derivatives useful as herbicides and defoliants Styrene derivatives useful as herbicides and defoliants

1993-05-14

1994-10-18

Higel, Floyd D.

Plant protecting and regulating compositions

Plant growth regulating compositions

Abscission agent, defoliant, or desiccant

504281, 504283, 504286, 504236, 504166, 504169, 504167, 544235, 544236, 544237, 658477, 658478, 658479, 658471, 658472, 658473, 658545, 658546, 658548, 6583625, C07D20948, C07D20724, C07D23726, C07D51314, A01N 3732, A01N 4338

Patent

active

053568605

ABSTRACT:
Abstract of the Disclosure: Styrene derivatives I ##STR1## where R.sup.1 is H or halogen, R.sup.2 is halogen, R.sup.3 is H, halogen or C.sub.1 -C.sub.4 -alkyl, R.sup.4 is CN or C.sub.1 -C.sub.6 -alkylcarbonyl and A is a heterocyclic radical A.sub.1 to A.sub.5 : ##STR2## where R.sup.5 and R.sup.6 are H, CH.sub.3 or C.sub.2 H.sub.5, n is 0 or 1 and X is oxygen or sulfur, with the proviso that R.sup.4 is alkylcarbonyl when R.sup.1 is H and at the same time A is A.sub.2 where n is 0, and agriculturally useful salts thereof, processes for the preparation of the styrene derivatives I and herbicides containing them.

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patent: 4933001 (1990-06-01), Plath et al.
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patent: 4997472 (1991-03-01), Rueb et al.
patent: 5034388 (1991-07-01), Clough et al.
patent: 5062884 (1991-11-01), Plath et al.
JP-A Kokai 27962/1986 Abstract Only.
Mali et al, Synthesis, vol. 10, pp. 862 to 865 (1984).
Matsumoto et al, Chemical Abstracts, vol. 105, #60524v (1986).
Plath et al, Chemical Abstracts, vol. 111, #77843v (1989).
Rueb et al, II, Chemical Abstracts, vol. 113, #'s 231369v, 231370p (1990).

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