The -c(=x)- Is Part Of A -c(=x)x- Group, Wherein The X's Are The Same Or Diverse Chalcogens Patents (Class 546/263)
  • Bis-quaternary pyridinium-2-aldoxime salts and a process for their preparation
    Patent number: 4128651
    Abstract: Bis-quaternary pyridinium-2-aldoxime salts of the formula ##STR1## wherein R is --CO--R.sup.1, --CO--NR.sup.2 R.sup.3 or --COOR.sup.4 ; R.sup.1 is alkyl of 1 - 6 carbon atoms, cyclohexyl, Ar or benzyl; R.sup.2 is H, alkyl of 1 - 6 carbon atoms, cyclohexyl, Ar, aralkyl of 7 - 13 carbon atoms or 2-pyrimidyl; R.sup.3 is alkyl of 2 - 6 carbon atoms, cyclohexyl, Ar, aralkyl of 7 - 13 carbon atoms or 2-pyrimidyl; R.sup.4 is alkyl of 2 - 6 carbon atoms, cyclohexyl, Ar or benzyl; Ar is phenyl or phenyl monosubstituted or polysubstituted by alkyl of 1 - 4 carbon atoms, methoxy, Cl, or naphthyl and X is Cl, Br or I, are antidotes for phosphorus-containing pesticides and chemical warfare agents.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: December 5, 1978
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Ilse Hagedorn