Water → Biphenyl

Participants

Reaction Conditions

Reaction Steps

In a reactor under nitrogen atmosphere, 4.4 g of compound (a4) and 3.2 g of sodium carbonate were added into 20 ml of DMF, followed by stirring at 80° C. 3.8 g of compound (a9) was added thereto, followed by stirring at 80° C. for an hour. The resulting reaction mixture was cooled to 30° C., to which 30 ml of water and 30 ml of toluene were added. The mixture was separated into organic layer and aqueous layer and the organic layer was extracted. The resulting organic layer was separated and washed with salt water and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to provide the residue. The resulting residue was purified by column chromatography (volume ratio heptane: toluene=4:1), further by recrystallization from the solvent mixture of Solmix A-11 and heptane (volume ratio Solmix A-11: heptane=1:2), dried to provide 1.8 g of 4′-ethoxy-2,3,2′,3′-tetrafluoro-4-(trans-4-vinylcyclohexylmethoxy)-biphenylmethoxy)-biphenyl (a10).

Provenance & Evidence