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14 декабря, 2021
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SYNTHESIS OF PURE E-1,2-BIS(TRIETHOXYSILYL)ETHENE (E-BTSE)
The diastereoisomerically pure E-isomer of the ethenylene precursor was synthesized according to a procedure described by our research group [43,45]. An amount of 0.0535 g of the Grubbs’ first generation catalyst and 42.95 mL of vinyltriethoxysilane (VTES) were mixed together under inert atmosphere. The mixture was stirred for 1 h at room temperature and subsequently refluxed. After 3 h, a distillation was performed to remove remaining VTES. Afterwards, the colorless E-1,2-bis(triethoxysilyl)eth — ene (E-BTSE) was distilled off under vacuum (~0.1 Pa).