HCID 178448033, compound → HCID 178448034, compound

Participants

Reaction Steps

Next, the above 2-[trans-4-(trans-4-propylcyclohexyl)cyclohexyl]-1-(3,4-difluorophenyl)ethene (1Og) was dissolved in ethyl acetate (100 ml), followed by subjecting the solution to catalytic hydrogenation at 20° C. by means of 5%-Pd/C catalyst (0.5 g) till absorption of hydrogen ceased, removing the catalyst after completion of the reaction, distilling off ethyl acetate and recrystallizing a remaining oily substance from ethanol to obtain the objective 2-[trans-4-(trans-4-propylcyclohexyl)cyclohexyl]-1-(3,4-difluorophenyl)ethane (8 g). This product had a broad mesomorphic range, and C-S point: 18.4° C., S-N point: 49.5° C. and N-I point: 118.3° C.

Provenance & Evidence