Claims
- 1. A method for the preparation of organooxysilanes containing at least one silicon-carbon bond comprising reacting at least one tetraorganooxysilane with at least one transition metal organo compound.
- 2. The method according to claim 1, wherein the tetraorganooxysilane comprises tetraalkoxysilanes, tetraaryloxysilanes, tetra(alkoxyaryloxy)silanes, or combinations thereof.
- 3. The method according to claim 2, wherein the tetraorganooxysilane comprises tetramethoxysilane.
- 4. The method according to claim 1, wherein the transition metal organo compound is selected from the group consisting essentially of bis(cyclopentadienyl)dimethylzirconium, bis(cyclopentadienyl)dimethyltitanium, bis(cyclopentadienyl)dimethylvanadium, (pentamethylcyclopentadienyl)tetramethyltantalum, hexamethyltungsten, methylrheniumtrioxide, tetramethylrheniumoxide, carbonyl(chloro)(iodo)-methylbis(triphenylphosphine)rhodium, carbonyl(chloro)(iodo)methylbis-(triphenylphosphine)iridium, bis(cyclopentadienyl)diphenylzirconium, and bis(cyclopentadienyl)dimethylzirconium.
- 5. The method according to claim 4, wherein the transition metal organo compound comprises bis(cyclopentadientyl)dimethylzirconium.
- 6. The method according to claim 5, wherein the reaction is operated in batch mode.
- 7. The method according to claim 5, wherein the reaction is operated in continuous mode.
- 8. The method according to claim 1, wherein the reaction is conducted at a temperature at or greater than about room temperature.
- 9. The method according to claim 8, wherein the reaction is conducted at a temperature in a range between about 50° C. and about 120° C.
- 10. The method according to claim 1, wherein the transition metal organo compound is present in a mole ratio of transition metal organo compound to tetraorganooxysilane in a range between about 0.15 and about 4.
- 11. The method according to claim 10, wherein the transition metal organo compound is present in a mole ratio of transition metal organo compound to tetraorganooxysilane in a range between about 0.25 and about 2.
- 12. The organooxysilanes prepared by the method of claim 1.
- 13. A method for the preparation of methyltrimethoxysilane comprising reacting tetramethoxysilane with bis(cyclopentadienyl)dimethylzirconium wherein the bis(cyclopentadienyl)dimethylzirconium is present in a mole ratio of bis(cyclopentadienyl)dimethylzirconium to tetramethoxysilane in a range between about 0.5 and about 1.2.
- 14. The methyltrimethoxysilane prepared by the method of claim 15.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT
[0001] The government may have certain rights in this invention pursuant to contract number DE-FC02-98CH10931 awarded by the United States Department of Energy.
Provisional Applications (1)
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Number |
Date |
Country |
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60194745 |
Apr 2000 |
US |