(3-Fluoropropyl)triphenylphosphonium bromide → HCID 178509800, Verbindung

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of (3-fluoropropyl)triphenylphosphonium bromide (15.0 g, 37.2 millimols) with THF (75 ml) was cooled down to -20° C., followed by adding t-BuOK (4.2 g, 37.2 millimols) to the mixture, stirring for one hour, dropwise adding to the mixture, a THF (100 ml) solution of trans-4-(trans-4-(4-cyanophenyl)cyclohexyl)cyclohexanecarbaldehyde (10.0 g, 37.2 millimols) so as to keep the temperature at -20° C. or lower, stirring the mixture at the same temperature for 2 hours, and treating the reaction product in the same manner as in Example 3, to obtain raw (E)-4-(trans-4-(trans-4-(4-fluorobutenyl)cyclohexyl)cyclohexyl)benzonitrile (9.9 g).

Herkunft & Nachweise