72952-73-9

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 cm?1) or NMR(trans coupling constant of 15.2 Hz for proton at C-3, 5.92 ppm).