Sodium Hydroxide → N-[-(Phenylsulfinyl)ethyl]-2-propanamine maleate

HRID 4208

反応式

HRID 4208 の反応式
Cl.[C:2]1([S:8][CH2:9][CH2:10][NH:11][CH:12]([CH3:14])[CH3:13])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.B1([O-])O[O:16]1.[OH2:19].[OH2:20].[OH2:21].[OH2:22].[Na+].[OH-].[Na+]>S(=O)(=O)(O)O>[C:2]([OH:22])(=[O:21])/[CH:3]=[CH:4]\[C:5]([OH:20])=[O:19].[C:2]1([S:8]([CH2:9][CH2:10][NH:11][CH:12]([CH3:14])[CH3:13])=[O:16])[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

実験手順

A solution of 15.62 g (0.067 mole) of N-[2-(phenylthio)ethyl]-2-propanamine hydrochloride and 15.62 g (0.101 mole) of sodium perborate tetrahydrate in 300 ml of 2M sulfuric acid was stirred at room temperature for 16 hr. The solution was made basic with 50% sodium hydroxide, and the basic solution was extracted with methylene chloride. The methylene chloride solution was dried over magnesium sulfate, and the solvent was removed in vacuo. The residue was dissolved in ether, a solution of maleic acid in methanol was added, and precipitated to give 19.48 g (88.3%) of white solid, m.p. 102.5°-103.5° C. A sample of this was recrystallized from methanol-ether, m.p. 102.5°-103.5° C.

後処理

  1. extractionthe basic solution was extracted with methylene chloride
  2. dry with materialThe methylene chloride solution was dried over magnesium sulfate
  3. customthe solvent was removed in vacuo
  4. dissolutionThe residue was dissolved in ether
  5. additiona solution of maleic acid in methanol was added
  6. customprecipitated

出典と根拠

ORDレコード
ord-df95688818af431f92f3b925fa45e917
出典データセット
uspto-grants-1988_02
特許番号
US04724235

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