Hydrogen Peroxide → 2-Hydroxy-4-(3,4,5-trifluorobenzyl)morpholin-3-one

HRID 1436085

反応式

HRID 1436085 の反応式
C([BH-](C(CC)C)C(CC)C)(CC)C.[Li+].[F:15][C:16]1[CH:17]=[C:18]([CH:28]=[C:29]([F:32])[C:30]=1[F:31])[CH2:19][N:20]1[CH2:25][CH2:24][O:23][C:22](=[O:26])[C:21]1=[O:27].[OH-].[Na+].OO.S(=O)(O)[O-].[Na+]>C1COCC1.[Cl-].[Na+].O.C(Cl)(Cl)Cl>[OH:26][CH:22]1[O:23][CH2:24][CH2:25][N:20]([CH2:19][C:18]2[CH:28]=[C:29]([F:32])[C:30]([F:31])=[C:16]([F:15])[CH:17]=2)[C:21]1=[O:27]

参加物

9

実験手順

A 1 M solution of lithium tri-sec-butylborohydride in THF (31.4 mL) was added dropwise to a solution of 4-(3,4,5-trifluorobenzyl)morpholine-2,3-dione (7.38 g) in THF at −15° C., and the reaction solution was stirred for two hours. A 5 N sodium hydroxide solution (2.85 mL) and 30% aqueous hydrogen peroxide (968 μL) were added dropwise to the reaction solution at 20° C. or less, which was then stirred at 10° C. for one hour. Sodium bisulfite (888 mg) was added to the reaction solution, which was then stirred for 30 minutes. Brine and chloroform were added to the reaction solution, and the organic layer was separated. The organic layer was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by column chromatography using a silica gel (heptane:ethyl acetate=1:1 to 0:100) to obtain 3.94 g of the title compound.

後処理

  1. stirringwhich was then stirred at 10° C. for one hour
  2. stirringwas then stirred for 30 minutes
  3. customthe organic layer was separated
  4. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-4b7cdc45b9ec452b93cfd55390b3b84a
出典データセット
uspto-grants-2009_11
特許番号
US07618960B2

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