Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions

1. A compound having a structure represented by a formula:

wherein R 27 represents six groups, each group independently selected from hydrogen,

provided that no more than four groups are hydrogen; and

wherein each occurrence of Q is independently N or P;

wherein R 23 , represents three groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein R 24 , represents three groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein R 25 , represents four groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein each of Z 10 and Z 11 , is independently hydrogen, halogen, C1-C4 alkyl, an electronic withdrawing group, or an electronic donating group; and

wherein each of Z 12 and Z 13 , is independently hydrogen, halogen, C1-C4 alkyl, an electronic withdrawing group, or an electronic donating group.

2. The compound of claim 1 , wherein the compound has a structure represented by a formula:

wherein each of R 27a , R 27b , and R 27c is independently selected from:

wherein each occurrence of Q is independently N or P;

wherein R 23 , represents three groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein R 24 , represents three groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein R 25 , represents four groups, each group independently selected from hydrogen, halogen, C1-C4 alkyl, and an electron withdrawing group;

wherein each of Z 10 and Z 11 , is independently hydrogen, halogen, C1-C4 alkyl, an electronic withdrawing group, or an electronic donating group; and

wherein each of Z 12 and Z 13 , is independently hydrogen, halogen, C1-C4 alkyl, an electronic withdrawing group, or an electronic donating group.

3. The compound of claim 1 , wherein the compound is:

4. A method for packaging an oxygen sensitive material comprising:

a. preparing a package having a wall comprising at least one layer, at least one of said layers comprising a composition comprising the compound according to claim 1 ;

b. introducing said oxygen sensitive material into said package; and

c. closing said package.

5. A method for producing a packaging material having a wall with oxygen barrier properties comprising:

a. combining a base polymer with at least one compound according to claim 1 to form a composition, the composition having at least one transition metal in a positive oxidation state, said metal being present in the composition in an amount of 10 to 400 ppm; and

wherein said compound is present in an amount of about 0.10 to 10 weight present of said composition,

b. forming the product of step (a) into a wall; and

c. forming a container which comprises said wall.

6. A method for making an article comprising:

a. forming a melt by combining in a melt processing zone:

i. a base polymer; and

ii. at least one compound according to claim 1 , to form a composition, the composition having at least one transition metal in a positive oxidation state, said metal being present in the composition in an amount of 10 to 400 ppm;

wherein said compound is present in an amount of about 0.10 to 10 weight present of said composition;

b. forming an article from said melt.

7. The method of claim 6 , wherein the article is a preform, sheet, bottle, cup, or jar.

8. A composition comprising organic material normally susceptible to gradual degradation in the presence of oxygen during use over an extended period containing an antioxidant effective amount of a compound according to claim 1 .

9. An oxygen scavenging composition that reacts with oxygen in the presence of transition metals and salts thereof comprising, an effective amount of a compound according to claim 1 .

10. An oxygen scavenging system comprising:

a. an oxygen scavenging composition comprising a compound according to claim 1 ;

b. an effective amount of a transition metal catalyst; and

c. a functional barrier permeable to oxygen.

11. The compound according to claim 1 , wherein no more than three R 27 groups are hydrogen.

12. The compound according to claim 1 , wherein at least one R 27 group is:

13. The compound according to claim 12 , wherein each R 23 and each R 24 group is hydrogen.

14. The compound according to claim 12 , wherein each of Z 10 and Z 11 is hydrogen.

15. The compound according to claim 1 , wherein at least one R 27 group is:

16. The compound according to claim 15 , wherein each R 25 group is hydrogen.

17. The compound according to claim 15 , wherein each of Z 12 and Z 13 is hydrogen.

18. The compound according to claim 1 , wherein each Q is N.

19. The compound according to claim 2 , wherein the compound has a structure represented by a formula:

20. The compound according to claim 19 , wherein the compound has a structure represented by a formula:

21. The compound according to claim 2 , wherein the compound has a structure represented by a formula:

22. The compound according to claim 21 , wherein the compound has a structure represented by a formula:

23. The compound according to claim 1 , wherein the compound has a structure represented by a formula:

24. The compound according to claim 1 , wherein the compound has a structure represented by a formula:

25. A composition comprising a base polymer, the compound according to claim 1 , and a transition metal in a positive oxidation state.

26. An article of manufacture comprising a composition comprising the compound according to claim 1 .