Substituted guanidine derivatives, their preparation and use

Abstract

Novel substituted nitroguanidine derivatives and salts thereof having the following formula: ##STR1## wherein R.sup.1 is a substituted or unsubstituted heterocyclic group; R.sup.2 is a group attached through a sulfur atom, a group attached through a phosphorus atom, cyano, --CO--OR.sup.6 wherein R.sup.6 is a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or --CO--NR.sup.7 R.sup.8 wherein R.sup.7 and R.sup.8, which are the same or different, are each independently hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or R.sup.7 and R.sup.8, taken together with the nitrogen atom to which they are attached are a cyclic amino group; R.sup.3 is hydrogen, a substituted or unsubstituted hydrocarbon group (except for one substituted with an oxo group at the binding site), a group attached through a sulfur atom, a group attached through a phosphorus atom, cyano, --CO--R.sup.9 wherein R.sup.9 is hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, --CO--OR.sup.10 wherein R.sup.10 is a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or --CO--NR.sup.11 R.sup.12 wherein R.sup.11 and R.sup.12, which are the same or different, are each independently hydrogen, a substituted or unsubstituted hydrocarbon group or a substituted or unsubstituted heterocyclic group, or R.sup.11 and R.sup.12, taken together with the nitrogen atom to which they are attached are a cyclic amino group; and R.sup.4 is hydrogen or a lower alkyl group; which have unexpectedly potent pesticidal activity and very low toxicity.