Coordination complex system comprising tautomeric ligands
US8283276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Apr 27, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a coordination complex system comprising a ligand having the formula: R1—SO2—NH—P (XR2)2 (1a); or R1—SO2—N═PH (XR2)2 (1b); or R1—SO(OH)═N—P(XR2)2 (1c); wherein X is independently O, S, NH, or a bond; R1 and R2 are independently selected from hydrogen and substituted or unsubstituted alkyl or aryl; wherein at least one equivalent of the ligand is complexed to an equivalent of a metal selected from a transition metal and lanthanide. The invention also relates to the use of said coordination complexes as catalysts in the hydroformylation, hydrogenation, transfer hydrogenation, hydrocyanation, polymerization, isomerization, carbonylation, cross-coupling, metathesis, CH activation, allylic substitution, aldol condensation, or Michael addition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.