Dichloromethane → HCID 18630839, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of intermediate 12 (0.032 mol) in HCl, (6N; 90 ml) was stirred at 75° C., then cooled. CH2Cl2 was added and the mixture was alkalized with NaOH at a temperature below 20° C. The organic layer was separated, dried, filtered and the solvent was evaporated. The residue was dried, yielding 7.2 g of 2-[(3,4-difluorophenyl)methyl]-4-piperidinone (intermediate 13). In a similar way as described in procedure d) were prepared:

Provenance & Evidence