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Hydrochloric Acid → 1-(o-Chlorophenoxy)-4-(4-phenyl-1-piperazinyl)-2-butanol

HRID 64701
Notes
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Reaction equation

HRID 64701 reaction equation
[Cl:1][C:2]1[CH:14]=[CH:13][CH:12]=[CH:11][C:3]=1[O:4][CH:5](Cl)[CH:6]([OH:9])[CH2:7][CH3:8].[C:15]1([N:21]2[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]2)[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.Cl.[OH-].[Na+]>C(O)(C)C>[Cl:1][C:2]1[CH:14]=[CH:13][CH:12]=[CH:11][C:3]=1[O:4][CH2:5][CH:6]([OH:9])[CH2:7][CH2:8][N:24]1[CH2:25][CH2:26][N:21]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:22][CH2:23]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 70961-PhenylpiperazineHCID 14798Sodium HydroxideHCID 198402391-(o-Chlorophenoxy)-2-hydroxybutyl chloride

Product 1

HCID 131204511-(o-Chlorophenoxy)-4-(4-phenyl-1-piperazinyl)-2-butanol

Reagents, catalysts & solvents 1

HCID 3776
Isopropanol
Solvent

Procedure

A mixture of 35.1 g. (0.15 mole) of 1-(o-chlorophenoxy)-2-hydroxybutyl chloride, 32.6 g. (0.2 mole) of N-phenylpiperazine and 400 ml. of isopropanol was refluxed for 48 hr. The reaction mixture was allowed to stand in a refrigerator overnight and filtered. The filtrate was treated with ethereal hydrogen chloride and the salt precipitated by the addition of ether. The white crystalline solid which formed was dissolved in 0.1 mole of hydrochloric acid and then neutralized with sodium hydroxide producing a crystalline precipitate. This was recrystallized with isopropanol yielding 36 g. of the free base of the product which melted at 100°-101.5° C.

Workup

  1. additionA mixture of 35.1 g
  2. customto stand in a refrigerator overnight
  3. filtrationfiltered
  4. additionThe filtrate was treated with ethereal hydrogen chloride
  5. customthe salt precipitated by the addition of ether
  6. customThe white crystalline solid which formed
  7. customThis was recrystallized with isopropanol yielding 36 g

Sources & evidence

ORD record
ord-a63c9a72ac364cb3ad8467f039c0d8f8
Source dataset
uspto-grants-1986_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US04609735

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes