Dimethyl Sulfoxide → 4-Chlorobenzyl-4-(3-chloropropyl)piperazine dihydrochloride

HRID 2309024

反応式

HRID 2309024 の反応式
[Cl:1][C:2]1[CH:14]=[CH:13][C:5]([CH2:6][N:7]2[CH2:12][CH2:11][NH:10][CH2:9][CH2:8]2)=[CH:4][CH:3]=1.CS(C)=O.[OH-].[K+].Br[CH2:22][CH2:23][CH2:24][Cl:25]>O>[ClH:1].[ClH:25].[Cl:1][C:2]1[CH:14]=[CH:13][C:5]([CH2:6][N:7]2[CH2:12][CH2:11][N:10]([CH2:22][CH2:23][CH2:24][Cl:25])[CH2:9][CH2:8]2)=[CH:4][CH:3]=1

参加物

6

反応物 4

HCID 679Dimethyl SulfoxideHCID 80061-Bromo-3-chloropropaneHCID 14797Potassium HydroxideHCID 1348264-Chlorobenzylpiperazine

生成物 1

HCID 201531894-Chlorobenzyl-4-(3-chloropropyl)piperazine dihydrochloride収率 146.8%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

First, 1-(4-chlorobenzyl)piperazine (20.0 g) is mixed with dimethyl sulfoxide (100 ml), potassium hydroxide (15.0 g) and 1-bromo-3-chloropropane (15.0 g) at room temperature for 3 hours. Water is added to the resulting solution, the reaction product is extracted with ether, dried (magnesium sulfate), and the salt is precipitated with ethereal hydrochloric acid to yield 25.1 g of 1-(4-chlorobenzyl)-4-(3-chloropropyl)piperazine dihydrochloride as a white crystalline solid.

後処理

  1. extractionthe reaction product is extracted with ether
  2. dry with materialdried (magnesium sulfate)
  3. customthe salt is precipitated with ethereal hydrochloric acid

出典と根拠

ORDレコード
ord-b4925db61d2e4b03a8789b505bcdf994
出典データセット
uspto-grants-1987_09
特許番号
US04692448

関連ノート

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