反应详情

A mixture of 1.6 parts of 4-[bis(4-fluorophenyl)methylene]-1-(phenylmethyl)piperidine and 80 parts of methanol was hydrogenated at normal pressure and at room temperature with 1 part of rhodium-on-charcoal catalyst 5%. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated, yielding 1.2 parts of 4-[bis(4-fluorophenyl)methylene]piperidine as a residue (intermediate 14).

1. filtrationthe catalyst was filtered off
2. customthe filtrate was evaporated