Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dibutylamine | HCID 8148 | — |
| Reactant | Chlorodimethyl(2,3,4,5-tetramethyl-2,4-cyclopentadien-1-yl)silane | HCID 5045335 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 131721452 | HCID 131721452 | 40.9% |
Reaction Steps
A 250 ml roundboftom flask equipped with a condenser, stirrer, thermometer and dropping funnel with nitrogen inlet was charged with 50 ml diethyl ether in which di-n-butylamine (3.8 g, 27 mmol) was dissolved. The solution was cooled to 0° C. and n-butyllithium (26 mmol, 1.6 M in hexane) was added; the solution was stirred for 2 hours at 2° C. and 30 minutes ar room temperature. The solution was then cooled to -90° C. and tetramethylcyclopentadienyl-dimethylsilylchloride (5.7 g, 27 mmol) was added in one portion. The mixture was then stirred for 16 hours allowing the temperature of the reaction mixture to rise to room temperature. A precipitate was filtered off and the solvent was evaporated. The remaining residue was distilled at sub-atmospheric pressure (2.7 mbar) at 130° C. to obtain di-n-butylamino-dimethylsilyl-tetramethylcyclopentadiene (3.4 g). The product was characterized by GC, GC-MS, 13C and 1H NMR.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05986029 |
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| Source dataset | uspto-grants-1999_11 |
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| ORD ID | ord-6753c1431355476e8f0266126a65841a |
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| Source note | uspto-grants-1999_11 |
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