Herbicidal 5-cyano-2,3-dihydro-benzofuran-2-ones

Details Herbicidal 5-cyano-2,3-dihydro-benzofuran-2-ones Herbicidal 5-cyano-2,3-dihydro-benzofuran-2-ones

1980-12-04

1982-06-08

Jiles, Henry R.

Chemistry: fertilizers

Processes and products

Forms or conditioning

549345, 549466, A01N 4312, C07D30788

Patent

active

043337597

ABSTRACT:
The invention provides herbicidally-active 2,3-dihydro-5-cyanobenzofurans of the formula: ##STR1## (wherein: R.sup.1 and R.sup.2 together represent .dbd.O or R.sup.1 represents hydrogen and R.sup.2 represents hydrogen, hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, alkylthiocarbonyloxy, halogen, isothiocyanato, amino, alkylamino, dialkylamino, arylamino, acylamino, alkoxycarbonylamino, alkylthiocarbonylamino, N-bonded heterocyclyl, cyano or alkylthio; R.sup.3 and R.sup.4 together represent alkylene or each represent hydrogen or alkyl; and R.sup.5, R.sup.6 and R.sup.7, which may be the same or different, each represent hydrogen, halogen, alkyl, alkoxy, acyl or cyano), processes for their preparation and herbicidal compositions containing them. ,

REFERENCES:
patent: 4162154 (1979-07-01), Gates et al.

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