Heterocyclic rodenticidal compounds, compositions containing the compounds, and methods of use

摘要

Heterocyclic compounds of the formula ##STR1## wherein X is -- CH CH--, --O-- or --S--; R.sup.1 is a group Ar--R.sup.2 or -- CHCH--C(CH. sub.3)CH--R.sup.21 ; Ar is phenyl, pyridyl, furyl or thienyl; R.sup. 2 is a group --CO.sub.2 R.sup.3, --C(O)R.sup.4, --CH. sub.2 OR.sup.3, lower-alkylsulphonyl or formyl; R.sup.21 is a group --CO. sub.2 R.sup.3, -- C(O)R.sup.4, --CH.sub.2 OR.sup.3 or formyl; R.sup.3 is hydrogen or lower- alkyl and R.sup.4 is hydrogen, hydroxy, amino, lower alkylamino, di- (lower alkyl)amino or lower-alkyl; at least one ring of the molecule being heterocyclic, salts thereof, processes for their preparation, rodenticidal compositions containing these compounds as the active ingredient and methods of use of the rodenticidal compositions are disclosed.