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US 2024/0326030 A1Published application
Palladium complex and catalyst embodiments and methods of making and using the same
AssigneeUVic Industry Partnerships Inc.
InventorsDavid Leitch, Jingjun Huang, Matthew Isaac, Ryan Watt
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Abstract
Disclosed herein are embodiments of a Pd(0) precursor complex and embodiments of phosphorus-based Pd(0) catalysts formed therefrom. Also disclosed are method embodiments for making the Pd(0) precursor complex and the phosphorus-based Pd(0) catalysts. The Pd(0) precursor complex can be used to generate, in situ, the phosphorus-based Pd(0) catalysts, in various different types of palladium-mediated coupling reactions.
Claims22
A complex, having a structure according to Formula III
- wherein
- each of R1, R2, R3, and R4 independently is selected from hydrogen, aliphatic, or an electron-withdrawing group provided that at least one of R1, R2, R3, or R4 is other than hydrogen;
- or R1 and R3, or R2 and R4 join together to provide a cyclic group and the remaining R1 and R3 groups, or R2 and R4 groups are hydrogen;
- each of R and R′ independently is selected from hydrogen, aliphatic, heteroaliphatic, aromatic, or an organic functional group, or R and R′ together to provide an aromatic, heterocyclic, or alicyclic ring system;
- each of the B ring and B′ ring independently is an aromatic ring system;
- each R5 independently is selected from aliphatic, heteroaliphatic, haloaliphatic, aromatic, an organic functional group, or a combination thereof;
- each R6 independently is selected from aliphatic, heteroaliphatic, haloaliphatic, aromatic, an organic functional group, or a combination thereof;
- and
- each of m and m′ independently is an integer selected from 0 to 10.
6 more elements
6-7. (canceled)
A catalyst, having a structure according to Formula IV, VA, or VB
- wherein with reference to Formulas IV and V,
- each of R1, R2, R3, and R4 independently is selected from hydrogen, aliphatic, or an electron-withdrawing group provided that at least one of R1, R2, R3, or R4 is other than hydrogen;
- or R1 and R3, or R2 and R4 join together to provide a cyclic group and the remaining R1 and R3 groups, or R2 and R4 groups are hydrogen;
- and
- each of R7, R8, R9, R10, R11, and R12 independently is selected from aliphatic, heteroaliphatic, haloaliphatic, haloheteroaliphatic, aromatic, or an organic functional group;
- or two or more of R7, R8, and R9, and/or independently two or more of R10, R11, and R12, can join together, with the phosphorus atom to which they are attached, to provide a heterocyclic ring system;
- and
- wherein with reference to Formula VB,
- each of R1, R2, R3, and R4 independently is selected from hydrogen, aliphatic, or an electron-withdrawing group provided that at least one of R1, R2, R3, or R4 is other than hydrogen;
- or R1 and R3, or R2 and R4 join together to provide a cyclic group and the remaining R1 and R3 groups, or R2 and R4 groups are hydrogen;
- or
- each of R7, R8, R11, and R12 independently is selected from aliphatic, heteroaliphatic, haloaliphatic, haloheteroaliphatic, aromatic, or an organic functional group and R9 and R10 independently are aliphatic, heteroaliphatic, haloaliphatic, haloheteroaliphatic, aromatic, or an organic functional group and are bound together through one or more carbon atoms and/or heteroatoms.
9 more elements
17-20. (canceled)
Dependencies are inferred from the claim text.