Phosphine oxide-substituted pyrimidines
AssigneeE. I. Du Pont de Nemours and Company
InventorJoseph J. Mrowca
Life of this patent
Estimating the term…
Abstract
Phosphine oxide of the formula selected from the group consisting of ##STR1## wherein X is H, alkylthio of 1-4 carbon atoms, or ##STR2## Y is H, alkyl of 1-4 carbon atoms, Cl, Br, or ##STR3## Z is H, alkyl of 1-4 carbon atoms, or ##STR4## at least one of X, Y, and Z in the formula in which all three symbols appear is ##STR5## Q is H or Br; each of A and A' is selected independently from H and alkyl of 1-4 carbon atoms, or A and A' taken jointly is CH.dbd.CH--CH.dbd.CH; each of D and D' is selected independently from H and CN, or D and D' taken jointly is CH.dbd.CH--CH.dbd.CH; and each R is selected independently from alkyl of 1-4 carbon atoms, cycloalkyl of 5-6 carbon atoms, benzyl, phenyl, tolyl, and chlorophenyl.
Claims7
Phosphine oxide of the formula ##STR11## wherein X is H, alkylthio of 1-4 carbon atoms, or ##STR12## Y is H, alkyl of 1-4 carbon atoms, Cl, Br, or ##STR13## Z is H, alkyl of 1-4 carbon atoms, or ##STR14## at least one of X, Y, and Z is ##STR15## Q is H or Br;
- and each R is selected independently from alkyl of 1-4 carbon atoms, cycloalkyl of 5-6 carbon atoms, benzyl, phenyl, tolyl, and chlorophenyl.
Dependencies are inferred from the claim text.