The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.

The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.

A supported catalyst and a preparation method thereof, and a preparation method of a high-carbon ketone are provided. The method for preparing the supported catalyst includes: mixing a transition metal nitrate and/or a transition metal acetate as a reaction substrate, a polyolefin powder porous material as a catalyst carrier, and water as a reaction medium evenly to obtain a mixture, and subjecting the mixture to drying and calcination in sequence to obtain the supported catalyst.

A supported catalyst and a preparation method thereof, and a preparation method of a high-carbon ketone are provided. The method for preparing the supported catalyst includes: mixing a transition metal nitrate and/or a transition metal acetate as a reaction substrate, a polyolefin powder porous material as a catalyst carrier, and water as a reaction medium evenly to obtain a mixture, and subjecting the mixture to drying and calcination in sequence to obtain the supported catalyst.

A method for preparing a supported transition metal catalyst, and the supported transition metal catalyst and use thereof in condensation coupling synthesis of a high-carbon ketone from an -H-containing ketone and an alcohol are provided. Preparation process of the supported transition metal catalyst includes adding a porous catalyst carrier to a solution of a transition metal salts, followed by standing, drying, calcining, and reducing. The transition metal salt is at least one selected from the group consisting of transition metal nitrates, transition metal formates, transition metal oxalates, and transition metal acetates, and the transition metal is a non-noble metal selected from the group consisting of transition metal elements from Groups VIIB, VIII, IB and IIB of the periodic table of the chemical elements.

A method for preparing a supported transition metal catalyst, and the supported transition metal catalyst and use thereof in condensation coupling synthesis of a high-carbon ketone from an -H-containing ketone and an alcohol are provided. Preparation process of the supported transition metal catalyst includes adding a porous catalyst carrier to a solution of a transition metal salts, followed by standing, drying, calcining, and reducing. The transition metal salt is at least one selected from the group consisting of transition metal nitrates, transition metal formates, transition metal oxalates, and transition metal acetates, and the transition metal is a non-noble metal selected from the group consisting of transition metal elements from Groups VIIB, VIII, IB and IIB of the periodic table of the chemical elements.