Sodium borohydride → HCID 19978935, compound

Participants

Reaction Steps

4.0 g (0.013 mol) of 1-(α,α-dimethylbenzyl)-2,4-dioxo-3-phenylpiperidine prepared by the method of Reference Example 18, was dissolved in 50 ml of ethanol, and 0.27 g (0.007 mol) of sodium borohydride was added thereto at room temperature. The mixture was stirred at room temperature for 30 minutes, and then ethanol was distilled off under reduced pressure. Water was added to the residue, and precipitated crystals were collected by filtration. The crude product thereby obtained was recrystallized from ethanol to obtain 3.6 g (yield: 90.0%) of the desired compound.

Provenance & Evidence