Triethyl Phosphate → HCID 178447754, compound

Participants

Reaction Steps

24.9 g (0.1 mol) of 1-bromo-4-n-pentyl-4-silacyclohexane was dripped into a mixture of 2.5 g (0.11 mol) of magnesium and 300 ml of THF to obtain a Grignard's reagent. This solution was then dripped into a 500 ml THF solution of 0.5 g of triethyl phosphate, 0.1 g of copper (I) iodide and 36.1 g (0.1 mol) of 4-(trans-4-(2-bromoethyl)cyclohexyl)-4'-fluorobiphenyl. After a conventional after treatment, 4-(trans-4-(2-(trans-4-n-pentyl-4-silacyclohexyl)ethyl)cyclohexyl)-4'-fluorobiphenyl was obtained. The silacyclohexane rings of the product were a mixture of trans isomers and cis isomers. They were separated by means of chromatography to obtain 30.5 g (yield 67.6%) of the trans isomer.

Provenance & Evidence