Disclosed herein are reaction compositions comprising an oxidation catalyst, a solvent, and a substrate that is dissolved in the solvent. The oxidation catalyst comprises a metal ion complexed with an -keto acid and a tridentate N,N,O-ligand. Also disclosed herein are methods for oxidizing a CH bond of a molecule, the methods comprising contacting the molecule with a metal complex comprising a metal ion complexed with a tridentate N,N,O-ligand in the presence of an -keto acid and a solvent. In some embodiments, the oxidation catalyst or metal complex is linked to a solid support.

The present disclosure is directed to novel methods of oxidizing polymers, such as polystyrene, using ozone, and deconstructing such polymers using ozone, to provide oligomeric product compounds, compounds made according to said methods, homopolymers and heteropolymers derived from said compounds, and compositions comprising said homopolymers and heteropolymers.

The present disclosure is directed to novel methods of oxidizing polymers, such as polystyrene, using ozone, and deconstructing such polymers using ozone, to provide oligomeric product compounds, compounds made according to said methods, homopolymers and heteropolymers derived from said compounds, and compositions comprising said homopolymers and heteropolymers.

Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes.

Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes.

The present invention relates to new types of cyclic carbaldehydes, the preparation thereof and the use as aromachemical, in particular as fragrance, and to aroma substance compositions and products comprising these carbaldehydes.

The present invention relates to new types of cyclic carbaldehydes, the preparation thereof and the use as aromachemical, in particular as fragrance, and to aroma substance compositions and products comprising these carbaldehydes.

The present invention relates to a process for producing 3-methylcyclopentadecane-1,5-dione of formula (I), which comprises the oxidation of 14-methyl-bicyclo[10.3.0]pentadecen[1 (12)] of formula (II) with an oxidizing agent, where the oxidation is performed by using a mixture of formic acid with H.sub.2O.sub.2 as sole oxidizing agent in the presence of water and where the amount of H.sub.2O.sub.2 is at least 1.1 mol H.sub.2O.sub.2 per mol of the compound of formula (II).

##STR00001##

The present invention relates to a process for producing 3-methylcyclopentadecane-1,5-dione of formula (I), which comprises the oxidation of 14-methyl-bicyclo[10.3.0]pentadecen[1 (12)] of formula (II) with an oxidizing agent, where the oxidation is performed by using a mixture of formic acid with H.sub.2O.sub.2 as sole oxidizing agent in the presence of water and where the amount of H.sub.2O.sub.2 is at least 1.1 mol H.sub.2O.sub.2 per mol of the compound of formula (II).

##STR00001##

The present invention relates to a process for producing 3-methylcyclopentadecane-1,5-dione of formula (I), which comprises the oxidation of 14-methyl-bicyclo[10.3.0]pentadecen[1 (12)] of formula (II) with an oxidizing agent, where the oxidation is performed by using a mixture of formic acid with H.sub.2O.sub.2 as sole oxidizing agent in the presence of water and where the amount of H.sub.2O.sub.2 is at least 1.1 mol H.sub.2O.sub.2 per mol of the compound of formula (II).

##STR00001##