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US 5,859,247 AGranted
Fluorous reaction and separation systems
AssigneeUniversity of Pittsburgh
InventorsDennis P. Curran, Sabine Hadida Ruah, Masahide Hoshino, Armido Studer, Peter Wipf, Patrick Jeger, Sun-Young Kim, Rafael Ferritto
Life of this patent
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Abstract
The present invention provides several methods of synthesis and separation in which organic/fluorous phase separation techniques are used to effect separations. The present invention also provides novel compositions of matter comprising fluorous Si, Sn and Ge compounds.
Claims19
A method of separation performed on a mixture comprising at least a first organic compound and a second organic compound, the method comprising the steps of:
- a. selectively reacting the first organic compound with a fluorous reaction component to attach a fluorous moiety to the first organic compound to result in a fluorous compound, the fluorous moiety comprising sufficient fluorine to render the fluorous compound separable from the second organic compound via an organic/fluorous phase separation technique;
- b. separating the fluorous compound from the second organic compound via the organic/fluorous phase separation technique.
A method of synthesizing an organic target product comprising the steps of:
- a. reacting a first organic compound with a first fluorous reaction component to attach a fluorous moiety to the first organic compound to result in a second fluorous reaction component, the fluorous moiety comprising sufficient fluorine to render a fluorous target product produced from the second fluorous reaction component in a reaction scheme including at least one reaction with at least a second organic compound separable via an organic/fluorous phase separation technique from any excess second organic compound and any organic byproduct produced in the reaction scheme;
- p1 b. reacting the second fluorous reaction component in the reaction scheme to produce the fluorous target product;
- c. separating the fluorous target product from any excess second organic compound and any organic byproduct;
- and
- d. reacting the fluorous target product to cleave the fluorous moiety and generate the organic target product.
2 more elements
A chemical compound of the formula
- XSi(R)(Rf)!.sub.3,
- wherein X is , Br, I, N.sub.3, OR.sup.1, OH, OOH, OOR.sup.1 SR.sup.1, SeR.sup.1, CN, NC, NR.sup.1 R.sup.2, a cyclic group, a heterocyclic group, a linear or branched alkyl group of 1 to 20 carbons, an alkenyl group, an alkynyl group, an acyl group, M'((R')(Rf')).sub.3, OM'((R')(Rf')).sub.3 or OOM'((R')Rf')).sub.3 wherein M' is Si, Ge, or Sn, and wherein R.sup.1 and R.sup.2 are each independently the same or different H, a linear or branched alkyl group, a cyclic alkyl group, an alkylsulfonyloxy group, a perfluoroalkylsulfonyloxy group, an acyl group, or a perfluoroacyloxy group, and wherein R and R' are each independently the same or different an alkylene group of 1 to 6 carbons and wherein Rf and Rf' are each independently a linear perfluoroalkyl group of 3 to 20 carbons, a branched perfluoroalkyl group of 3 to 20 carbons, or a hydrofluoroalkyl group of 3 to 20 carbons, the hydrofluoroalkyl group comprising up to one hydrogen atom for each two fluorine atoms.
A chemical compound of the formula
- X.sup.1 Si(R)(Rf)!.sub.3,
- wherein X is H or Cl, and wherein R is an alkylene group of 1 to 6 carbons and wherein Rf is a linear perfluoroalkyl group of 7 to 20 carbons, a branched perfluoroalkyl group of 7 to 20 carbons, or a hydrofluoroalkyl group of 7 to 20 carbons, the hydrofluoroalkyl group comprising up to one hydrogen atom for each two fluorine atoms.
A chemical compound of the formula
- XSi(R)(Rf)!.sub.3,
- wherein X is F, Br, I, N.sub.3, OR.sup.1, OH, OOH, OOR.sup.1 SR.sup.1, SeR.sup.1, CN, NC, NR.sup.1 R.sup.2, a cyclic group, a heterocyclic group, a linear or branched alkyl group of 1 to 20 carbons, an alkenyl group, an alkynyl group, an acyl group, M'((R')(Rf')).sub.3, OM'((R')(Rf')).sub.3 or OOM'((R')Rf')).sub.3, wherein M' is Si, Ge, or Sn, and wherein R.sup.1 and R.sup.2 are each independently the same or different H, a linear or branched alkyl group, a cyclic alkyl group, an alkylsulfonyloxy group, a perfluoroalkylsulfonyloxy group, an acyl group, or a perfluoroacyloxy group, and wherein R and R' are each independently the same or different an alkylene group of 1 to 6 carbons, and wherein Rf is a linear perfluoroalkyl group of 7 to 20 carbons, a branched perfluoroalkyl group of 7 to 20 carbons, or a hydrofluoroalkyl group of 7 to 20 carbons, the hydrofluoroalkyl group comprising up to one hydrogen atom for each two fluorine atoms, and Rf' is a linear perfluoroalkyl group of 3 to 20 carbons, a branched perfluoroalkyl group of 3 to 20 carbons, or a hydrofluoroalkyl group of 3 to 20 carbons, the hydrofluoroalkyl group comprising up to one hydrogen atom for each two fluorine atoms.
Dependencies are inferred from the claim text.