Heterogeneous rhodium metal catalysts
AssigneeThe Governors of the University of Alberta
InventorsSteven H. Bergens, Andrew Douglas Sullivan, Michael Hass
Life of this patent
Estimating the term…
Abstract
Novel polymeric rhodium catalysts having repeating subunits of Formula (I), wherein R1-R8, X, A, m, n and p are as defined in the application, are described along with methods of using these catalysts, as well as precursors therefor, in the chemical synthesis transformations.
Claims38
A polymeric catalyst comprising repeating subunits of the formula I:
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C 1-6alkyl, OC1-6alkyl and halo;
- R5, R6, R7 and R8 are independently selected from H, C1-6alkyl, OC1-6alkyl and halo;
- or
- R5 and R6 and/or R7 and R8 are ═O;
- or
- one of R5 and R6 is linked to one of R7 and R8 to form, together with the atoms to which they are attached and the atoms connecting them, a monocyclic, bicyclic or tricylic ring system;
- R5, R6, R7 and R8 in each methylene unit is the same or different, and means the double bond attached to this bond is in the cis or trans configuration, if applicable;
- m and n are, independently, an integer between and including 0 and 10;
- p is an integer between and including 1 and 14;
- and
- X is an anionic ligand.
A compound of formula II:
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- X is an anionic ligand;
- and
- is a monocyclic, bicyclic or tricylic group comprising at least one double bond and being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl, halo and ═O.
A method of performing metal-catalyzed organic synthesis reactions comprising contacting substrates for the organic synthesis reaction with a catalyst comprising repeating subunits of the formula I, a catalyst comprising a compound of formula II, or a combination thereof, under conditions for performing the organic synthesis reaction, and optionally isolating one or more products from the organic synthesis reaction;
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a monocyclic, bicyclic or tricylic group comprising at least one double bond and being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl, halo and ═O;
- R5, R6, R7 and R8 are independently selected from H, C1-6alkyl, OC1-6alkyl and halo;
- or
- R5 and R6 and/or R7 and R8 are ═O;
- or
- one of R5 and R6 is linked to one of R7 and R8 to form, together with the atoms to which they are attached and the atoms connecting them, a monocyclic, bicyclic or tricylic ring system;
- R5, R6, R7 and R8 in each methylene unit is the same or different, and means the double bond attached to this bond is in the cis or trans configuration, if applicable;
- m and n are, independently, an integer between and including 0 and 10;
- p is an integer between and including 1 and 14;
- and
- X is an anionic ligand.
A method for the intramolecular cycloisomerization of enynes comprising contacting one or more compounds having at least one enyne grouping with a catalyst comprising repeating subunits of the formula I, a catalyst comprising a compound of formula II, or a combination thereof, in the presence of an anion abstracting agent under conditions suitable for the intramolecular cycloisomerization of the at least one enyne grouping;
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a monocyclic, bicyclic or tricylic group comprising at least one double bond and being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl, halo and ═O;
- R5, R6, R7 and R8 are independently selected from H, C1-6alkyl, OC1-6alkyl and halo;
- or
- R5 and R6 and/or R7 and R8 are ═O;
- or
- one of R5 and R6 is linked to one of R7 and R8 to form, together with the atoms to which they are attached and the atoms connecting them, a monocyclic, bicyclic or tricylic ring system;
- R5, R6, R7 and R8 in each methylene unit is the same or different, and means the double bond attached to this bond is in the cis or trans configuration, if applicable;
- m and n are, independently, an integer between and including 0 and 10;
- p is an integer between and including 1 and 14;
- and
- X is an anionic ligand.
A composition comprising a compound of formula I, a compound of formula II, or a mixture thereof and an anion abstracting agent;
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a monocyclic, bicyclic or tricylic group comprising at least one double bond and being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl, halo and ═O;
- R5, R6, R7 and R8 are independently selected from H, C1-6alkyl, OC1-6alkyl and halo;
- or R5 and R6 and/or R7 and R8 are ═O;
- or
- one of R5 and R6 is linked to one of R7 and R8 to form, together with the atoms to which they are attached and the atoms connecting them, a monocyclic, bicyclic or tricylic ring system;
- R5, R6, R7 and R8 in each methylene unit is the same or different, and means the double bond attached to this bond is in the cis or trans configuration, if applicable;
- m and n are, independently, an integer between and including 0 and 10;
- p is an integer between and including 1 and 14;
- and
- X is an anionic ligand.
A kit comprising a compound of formula I, a compound of formula II, or a mixture thereof and an anion abstracting agent, either in one composition or in separate compositions, optionally, with instructions for use;
- wherein
- R1, R2, R3 and R4 are independently selected from phenyl and C4-8cycloalkyl, the latter two groups being unsubstituted or substituted, where possible, with 1, 2, 3, 4, or 5 groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a binaphthyl group or a derivative of a binaphthyl group, each being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl and halo;
- is a monocyclic, bicyclic or tricylic group comprising at least one double bond and being unsubstituted or substituted with one or more groups independently selected from C1-6alkyl, OC1-6alkyl, halo and ═O;
- R5, R6, R7 and R8 are independently selected from H, C1-6alkyl, OC1-6alkyl and halo;
- or
- R5 and R6 and/or R7 and R8 are ═O;
- or
- one of R5 and R6 is linked to one of R7 and R8 to form, together with the atoms to which they are attached and the atoms connecting them, a monocyclic, bicyclic or tricylic ring system;
- R5, R6, R7 and R8 in each methylene unit is the same or different, and means the double bond attached to this bond is in the cis or trans configuration, if applicable;
- m and n are, independently, an integer between and including 0 and 10;
- p is an integer between and including 1 and 14;
- and
- X is an anionic ligand.
Dependencies are inferred from the claim text.