Process for the alkoxylation of organic compounds in the presence of novel framework materials
View Patent ↗The present invention relates to a process for the alkoxylation of organic compounds comprising the reaction of at least one organic compound with at least one alkoxylating agent in the presence of a catalyst system, wherein a polyether alcohol is obtained. The catalyst system comprises a metallo organic framework mate-rial comprising pores and at least one metal ion and at least one at least bidentate organic compound, which is coordinately bounded to said metal ion. Furthermore it relates to polyurethanes or polyurethane foams, which are obtainable by using a prepared polyether alcohol as a starting material.
1. A process for the alkoxylation of organic compounds, which comprises:
reacting at least one organic compound, which is capable of being alkoxylated, with at least one alkoxylation agent in the presence of a catalyst system to form a polyether alcohol, wherein the catalyst system comprises a metallo-organic framework material comprising pores and at least one metal ion and at least one at least bidentate organic compound, which is coordinately bounded to said metal ion,
wherein the at least bidentate organic compound is selected from the group consisting of substituted or unsubstituted aromatic polycarboxylic acids, which may comprise one or more nuclei; and substituted or unsubstituted aromatic polycarboxylic acids, which comprise at least one heteroatom and which may have one or more nuclei.
2. A process according to claim 1 , wherein the metal ion is selected from the group consisting of elements of groups Ia, IIa, IIIa, IVa to VIIIa and Ib to VIb of the periodic table of the elements.
3. A process according to claim 1 , wherein the metallo-organic framework material comprising pores exhibits a specific surface area, as determined via adsorption (BET according to DIN 66131) of larger than 20 m 2 /g.
4. A process according to claim 1 , wherein the alkoxylation agent is selected from the group consisting of mono- or multi-functional epoxides having 2 to 30 carbon atoms and mono- or multi-functional polyetherpolyols having a molar mass of above 600 g/mol and a mixture of two or more thereof.
5. A process for the preparation of a polyurethane comprising:
reacting at least one organic compound, which is capable of being alkoxylated, with at least one alkoxylating agent via a process according to claim 1 , to form a polyether alcohol;
reacting the polyether alcohol with at least one isocyanate.
6. A process according to claim 5 , wherein the alkoxylating agent is propylene oxide, which has been obtained by reacting propylene with oxygen, hydrogen and oxygen; hydrogen peroxide; organic hydroperoxides; or halohydrins.
7. A process according to claim 6 , wherein the propylene oxide has been obtained by reacting propylene with hydrogen peroxide.
8. A process according to claim 6 , wherein the propylene oxide has been obtained by reacting propylene with hydrogen peroxide in the presence of a catalyst comprising a zeolitic material.
9. A process according to claim 6 , wherein the propylene oxide has been obtained by reacting propylene with hydrogen peroxide in the presence of a catalyst comprising a titanium containing zeolitic material having TS-1 structure.
10. A process according to claim 1 , wherein the metal ion is Co 2+ or Zn 2+ .
11. A process according to claim 1 , wherein the at least bidentate organic compound ligand is 1,3,5-benzene tricarboxylic acid.
12. A process according to claim 10 , wherein the at least bidentate organic compound ligand is 1,3,5-benzene tricarboxylic acid.
13. A process according to claim 5 , wherein the metal ion is Co 2+ or Zn 2+ .
14. A process according to claim 5 , wherein the at least bidentate organic compound ligand is 1,3,5-benzene tricarboxylic acid.
15. A process according to claim 14 , wherein the at least bidentate organic compound ligand is 1,3,5-benzene tricarboxylic acid.