The disclosure relates to oxygen scavenging molecules, compositions, methods of making the compositions, articles prepared from the compositions, and methods of making the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

A process for preparing a tetra-substituted aminobiphenol macrocyclic ligand having the structure (I), including the step of treating a precursor compound having the structure (II) with a compound having the structure R6-L where L is a leaving group (hereafter compound (III)) in the presence of a base.

A process for preparing a tetra-substituted aminobiphenol macrocyclic ligand having the structure (I), including the step of treating a precursor compound having the structure (II) with a compound having the structure R6-L where L is a leaving group (hereafter compound (III)) in the presence of a base.

Tetrazine non-canonical amino acids, methods for genetic encoding proteins and polypeptides using the tetrazine amino acids, proteins and polypeptides comprising the tetrazine amino acids, and compositions comprising the proteins and polypeptides having at least one post-translational modification thereof comprising in vivo reaction with the incorporated tetrazine amino acid and a second molecule.

An azasteroid mimic or an intermediate for the preparation of an azasteroid and azasteroid mimic is formed via an oxocycloalkenyl isoxazolium anhydrobase and its dimer. The dimer can be used to form mono- and dihydrazones, which can be an azasteroid mimic or an intermediate for the preparation of an azasteroid and azasteroid mimic. A method of preparation of the dimer and the azasteroid mimic or an intermediate for the preparation of an azasteroid and azasteroid mimic occurs with hydrazonation and, optionally, a subsequent dehydrazonation. The dimer can be converted by inserting a nitrogen atom into the six membered ring of to a C-17 position cyclohexenone moiety of the dimer to yield a reduced tetrazolo[1,5-a]azepin-8-yl group. A subsequent hydrozone formation at a benzylic ketone can be carried out to generate an azasteroid mimic with a (triazol-4-yl)imino substituent. Monohydrazones can be converted to their thione equivalents.

A subject of the present invention is the use of a compound having the general formula (I): (I) wherein V, W, X.sub.4, X.sub.5, X.sub.6, X.sub.7, X.sub.4, X.sub.5, X.sub.6, X.sub.7, Y, Y, R.sub.3, R.sub.3, R.sub.4 and R.sub.4 are as defined in any one of claims 1 to 11, for the detection, capture and/or separation of polluting gases, in particular those selected from the group comprising carbon dioxide, methane, sulfur dioxide, nitrogen oxides, carbon monoxide, linear hydrocarbons, linear mono-olefins and their mixtures, and preferably carbon dioxide. Another subject of the invention is a compound of formula (I) wherein V, W, X.sub.4, X.sub.5, X.sub.6, X.sub.7, X.sub.4, X.sub.5, X.sub.6, X.sub.7, Y, Y, R.sub.3, R.sub.3, R.sub.4 and R.sub.4 are as defined in any one of claims 12 to 21.

##STR00001##

A subject of the present invention is the use of a compound having the general formula (I): (I) wherein V, W, X.sub.4, X.sub.5, X.sub.6, X.sub.7, X.sub.4, X.sub.5, X.sub.6, X.sub.7, Y, Y, R.sub.3, R.sub.3, R.sub.4 and R.sub.4 are as defined in any one of claims 1 to 11, for the detection, capture and/or separation of polluting gases, in particular those selected from the group comprising carbon dioxide, methane, sulfur dioxide, nitrogen oxides, carbon monoxide, linear hydrocarbons, linear mono-olefins and their mixtures, and preferably carbon dioxide. Another subject of the invention is a compound of formula (I) wherein V, W, X.sub.4, X.sub.5, X.sub.6, X.sub.7, X.sub.4, X.sub.5, X.sub.6, X.sub.7, Y, Y, R.sub.3, R.sub.3, R.sub.4 and R.sub.4 are as defined in any one of claims 12 to 21.

##STR00001##

The disclosure relates to oxygen scavenging molecules, compositions, methods of making the compositions, articles prepared from the compositions, and methods of making the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

The disclosure relates to oxygen scavenging molecules, compositions, methods of making the compositions, articles prepared from the compositions, and methods of making the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Tetrazine non-canonical amino acids, methods for genetic encoding proteins and polypeptides using the tetrazine amino acids, proteins and polypeptides comprising the tetrazine amino acids, and compositions comprising the proteins and polypeptides having at least one post-translational modification thereof comprising in vivo reaction with the incorporated tetrazine amino acid and a second molecule.