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US 4,307,238 AGranted
Substituted 2-imino-1,3-dithio and 1,3-oxathio heterocyclic compounds as herbicidal antidotes
AssigneeMonsanto Company
InventorFrederic G. Bollinger
Life of this patent
Estimating the term…
Abstract
Derivatives of 2-imino-1,3-dithiolane, 1,3-dithiole, 1,3-dithiane, 1,3-dithietane and 1,3-oxathiole have been found to reduce herbicidal injury to crop plants due to thiocarbamate and acetanilide herbicides. This is a division, of application Ser. No. 960,987 filed Nov. 15, 1978, now U.S. Pat. No. 4,231,783.
Claims13
A compound having the formula
- R--N.dbd.A
- or an agriculturally acceptable acid addition salt thereof wherein R is lower alkyl or ##STR52## R.sub.1 is hydrogen or lower alkyl;
- X and Y independently equal hydrogen, lower alkyl, lower alkoxy or halogen;
- n is 0, 1, 2 or 3;
- A is ##STR53## R.sub.2 is hydrogen or methyl;
- R.sub.3 is hydrogen or halogen;
- provided that when n is 1 and A is ##STR54## R.sub.1 cannot equal ethyl.
4 more elements
A compound, or an agriculturally acceptable salt thereof, having the formula ##STR61## wherein R.sub.1 is hydrogen or lower alkyl;
- X and Y independently equal hydrogen, lower alkyl, lower alkoxy or halogen;
- n is 1, 2 or 3;
- Z is oxygen or sulfur;
- R.sub.4 is hydrogen, methyl or phenyl;
- provided that when n is 1 and
- R.sub.4 is methyl, R.sub.1 cannot equal n-propyl or isobutyl.
3 more elements
Dependencies are inferred from the claim text.