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| | (2,4-Pentadienyl)trimethylsilanedisc 06/13/03 Basic information |
| | (2,4-Pentadienyl)trimethylsilanedisc 06/13/03 Chemical Properties |
| Boiling point | 127°C | | density | 0.758±0.06 g/cm3(Predicted) | | Fp | 18°C | | solubility | sol hexane, benzene, CH2Cl2, ether, THF. |
| | (2,4-Pentadienyl)trimethylsilanedisc 06/13/03 Usage And Synthesis |
| Physical properties | bp 41 °C/36 mmHg or 105 °C/760 mmHg; n20/
D 1.4570. | | Uses | 5-Trimethylsilyl-1,3-pentadiene is a useful pentadienylation reagent; an allyl silane; a precursor
for 1-trimethylsilyldienes and intramolecular Diels–Alder
substrates). | | Preparation | 5-Trimethylsilyl-1,3-pentadiene may be prepared in 85% yield by the reaction
of pentadienyllithium with chlorotrimethylsilane in THF at
room temperature.1–3 Generally the product is ≈95% (E) isomer
as judged by IR (strong band at 1000 cm1) or NMR(trans
coupling constant of 15.2 Hz for proton at C-3, 5.92 ppm). | | storage | Stable liquid; the toxicological properties of this reagent are unknown. It should be handled in a well ventilated hood. |
| | (2,4-Pentadienyl)trimethylsilanedisc 06/13/03 Preparation Products And Raw materials |
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