Sodium Chloride → 3-((tert-Butoxycarbonyl)amino)-4,4-difluorobutanoic acid

HRID 1903249

反応式

HRID 1903249 の反応式
Cl.[F:2][CH:3]([F:10])[CH:4]([NH2:9])[CH2:5][C:6]([OH:8])=[O:7].[C:11](OC([O-])=O)([O-])=O.[C:18](=[O:21])(O)[O-:19].[Na+].[Cl-].[Na+].O1[CH2:29][CH2:28][CH2:27]C1>O>[F:2][CH:3]([F:10])[CH:4]([NH:9][C:18]([O:19][C:28]([CH3:27])([CH3:29])[CH3:11])=[O:21])[CH2:5][C:6]([OH:8])=[O:7]

参加物

7

実験手順

A mixture of 4,4-difluoro-3-amino-butanoic acid, hydrochloride prepared as in Step C (0.702 g, 4 mM), ditertiobutyl dicarbonate (0.916 g, 4.2 mM), sodium bicarbonate (0.336 g, 4 mM) in tetrahydrofuran and water (6 ml of a 1:1 mixture) is heated at reflux for 48 hours. The resulting solution is saturated with sodium chloride and extracted three times with chloroform. The organic phase is dried over anhydrous magnesium sulfate, and the solvent evaporated in vacuo yielding a colorless oil.

後処理

  1. temperatureis heated
  2. temperatureat reflux for 48 hours
  3. extractionextracted three times with chloroform
  4. dry with materialThe organic phase is dried over anhydrous magnesium sulfate
  5. customthe solvent evaporated in vacuo
  6. customyielding a colorless oil

出典と根拠

ORDレコード
ord-e51cfa98c7f84b508c523cc99e55a595
出典データセット
uspto-grants-1984_03
特許番号
US04435425

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