Ammonia → 1-(4-Aminomethylphenyl)-3-[3-(4-fluorophenyl)-3-hydroxypropyl]-4-(4-methoxyphenyl)azetidin-2-one

Participants

Reaction Conditions

Reaction Steps

1.22 g of 4-[3-[3-(4-fluorophenyl)-3-hydroxypropyl]-2-(4-methoxyphenyl)4-oxoazetidin-1-yl]benzonitrile are dissolved in 90 ml of ethanol, 10 ml of conc. ammonia solution and an excess of Raney nickel are added and the mixture is stirred at 60° C. and a hydrogen pressure of 10 bar for 8 h. Overnight, the reaction mixture cools to room temperature. The next day, the catalyst is separated off, the filtrate is concentrated under reduced pressure and the residue is purified chromatographically on silica gel using dichloromethane/methanol/ammonia solution 10/1/0.1. This gives 1-(4-aminomethylphenyl)-3-[3-(4-fluorophenyl)-3-hydroxypropyl]-4-(4-methoxyphenyl)azetidin-2-one of molecular weight 434.51 (C26H27FN2O3); MS (ESI): 418.2 (MH+—NH3).

Provenance & Evidence