| abstract |
The present invention relates to compounds of structural formulas I and II: Wherein X is selected from O, S and NH; Y, A and B are independently selected from N and CH; D, E and F are independently selected from CH, N, O and S; symbol ---- represents a single bond or a double bond; and R 1 , R 2 and R 3 are independently selected from H, an electron withdrawing group and an electron donating group. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles. |