Homogeneous catalysts that are recoverable by host-guest interactions
AssigneeThe Florida State University Research Foundation, Inc.
InventorHoyong Chung
Life of this patent
Estimating the term…
Abstract
A method for separating a homogeneous catalyst from a solution includes forming a host-guest compound between a first isomer of the catalyst and inclusion compound in the solution and isolating the host-guest compound from the solution. The catalyst may be released from the inclusion compound by converting the first isomer of the catalyst to a second isomer of the catalyst.
Claims12
A method of performing a catalyzed chemical reaction, the method comprising:
- catalyzing a chemical reaction in a solution using an azobenzene-modified Grubbs homogeneous catalyst;
- adding a host compound to the solution, the host compound binding a first isomer of the catalyst to form a host-guest compound including the host compound and first isomer of the catalyst, the host compound being a cyclodextrin;
- isolating the host-guest compound from the solution;
- and
- releasing the catalyst from the host-guest compound by converting the first isomer of the catalyst to a second isomer of the catalyst.
A composition comprising a homogeneous catalyst including a transition metal complex having an N-heterocyclic carbene ligand with an azobenzene functional group thereon, the azobenzene functional group being effective to undergo cis-trans isomerization;
- the composition having the formula
- where R indicates the position of the azobenzene functional group.
Dependencies are inferred from the claim text.