HCID 22121151, compound → HCID 23496701, compound

Participants

Reaction Steps

32.5 g of 4,4'-bis(4-nitro-3-benzyloxyphenoxy)octafluorobenzophenone prepared as described in Example 3 (0.04 mol) are dissolved in 500 ml of a mixture of tetrahydrofuran and ethyl acetate (volume ratio 1:1), and 3 g of Pd/C (palladium/carbon) are added to the solution. The mixture is then hydrogenated at room temperature in an autoclave with vigorous stirring using hydrogen at a pressure of 1 bar; after 3 days, the reaction is terminated. The yellow-beige solution is evaporated to half in a rotary evaporator and 100 ml n-hexane is added, during which the reaction product precipitates in crystalline form. The reaction product is then collected and dried for 48 hours under nitrogen at 40° C./10 mbar in a vacuum drying cabinet (yield: 95%).

Provenance & Evidence