Thionyl Chloride → HCID 70638444, compound
Reaction equation
[Cl:1][C:2]1[CH:23]=[CH:22][C:5]([CH2:6][N:7]2[CH2:12][CH2:11][N:10]([CH2:13][CH2:14]O)[CH2:9][CH:8]2[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[CH:4][CH:3]=1.S(Cl)([Cl:26])=O>C(Cl)(Cl)Cl>[ClH:1].[Cl:1][C:2]1[CH:23]=[CH:22][C:5]([CH2:6][N:7]2[CH2:12][CH2:11][N:10]([CH2:13][CH2:14][Cl:26])[CH2:9][CH:8]2[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
24 g. of 1-(4'-chloro benzyl)-2-phenyl-4-(β-hydroxy ethyl) piperazine are dissolved in 150 cc. of chloroform and added drop by drop to a solution of 15 g. of thionyl chloride in 150 cc. of chloroform. The mixture is boiled under reflux for 5 hours and the solvent is removed in a vacuum by heating the mixture in a water bath. Excess of absolute ethanolic hydrochloric acid is added and the remaining acid is distilled off. The crystalline residue obtained is recrystallized from absolute ethanol. Melting point 178°-195° C. (dec.); yield 30 g.