2'-Phenylhydrazino-2-cyanoacrylic acid esters and herbicides con

Details 2'-Phenylhydrazino-2-cyanoacrylic acid esters and herbicides con 2'-Phenylhydrazino-2-cyanoacrylic acid esters and herbicides con

1981-11-18

1983-03-15

Torrence, Dolph H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

260465D, A01N 3734, C07C12178

Patent

active

043766455

ABSTRACT:
2'-Phenylhydrazino-2-cyanoacrylic acid esters of the formula ##STR1## wherein R.sup.1 is methyl, trifluoromethyl, chlorine or bromine, R.sup.2 is chlorine, bromine, iodine or methylsulfonyl, R.sup.3 is hydrogen, chlorine or bromine, or methoxy in the 5-position, in which case R.sup.1 and R.sup.2 are chlorine, or R.sup.3 is chlorine in the 3-position, in which case R.sup.2 is hydrogen, and R.sup.4 is alkyl of 1 to 3 carbon atoms, allyl or propargyl, and herbicides containing these compounds.

REFERENCES:
patent: 2792296 (1957-05-01), Heininger
patent: 3062635 (1962-11-01), Acker et al.
patent: 3726662 (1973-04-01), Howe et al.
Farmaco Ed. Sci. 22 (1967), pp. 58-75 and p. 418.

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