Phosphorus pentachloride → HCID 70614985, compound

Participants

Reaction Steps

7.9 gm (20 millimols) of N-[p-(1-hexahydropyrimidin-2-one-yl)-β-hydroxy-phenethyl]-N'-(o-tolyl)-piperazine (see Example 10) were dissolved in 100 ml of acetonitrile, and, while stirring and cooling the solution, 8.34 gm (40 millimols) of phosphorus pentachloride were added thereto. A good yield of N-[p-(1-hexahydropyrimidin-2-one-yl)-β-chlorophenethyl]-N'-(o-tolyl)-piperazine dihydrochloride was obtained. This product was dissolved in 100 ml of methanol, 10 gm of dimethylaniline and a small amount of Raney nickel were added to the solution, and the mixture was hyhdrogenated at atmospheric pressure, yielding N-[p-(1-hexahydropyrimidin-2-one-yl)-phenethyl]-N'-(o-tolyl)-piperazine, m.p. 127° - 128°C, after working up the reaction mixture in conventional manner.

Provenance & Evidence