Phosphoric Acid → (4R)-2,2-Dimethyl-1,3-dioxolane-4-carboxylic acid

HRID 1479227

反応式

HRID 1479227 の反応式
[CH3:1][C:2]1([CH3:10])[O:6][C@@H:5]([C:7]([O-:9])=[O:8])[CH2:4][O:3]1.[Na+].OP(O)(O)=O.[Na+].[Cl-]>O.C(OCC)(=O)C>[CH3:1][C:2]1([CH3:10])[O:6][C@@H:5]([C:7]([OH:9])=[O:8])[CH2:4][O:3]1

参加物

6

反応条件

温度
0 °C

実験手順

Sodium (R)-(+)-2,2-dimethyl-1,3-dioxolane-4-carboxylate (1.03 g, 6.1 mmol) was dissolved in a mixture of water (1.2 ml) and ethyl acetate (1.2 ml) and cooled to 0° C. 2 M aqueous H3PO4 solution (7 ml) was added until the reaction mixture reached pH 2. After that the reaction mixture was saturated with NaCl and the reaction mixture was extracted with ethyl acetate (3×20 ml). The organic layer was dried over Na2SO4 and the solvent was removed under reduced pressure. The product (0.73 g, 4.9 mmol, 81%) was used in the next step without any further purification.

後処理

  1. extractionthe reaction mixture was extracted with ethyl acetate (3×20 ml)
  2. dry with materialThe organic layer was dried over Na2SO4
  3. customthe solvent was removed under reduced pressure

出典と根拠

ORDレコード
ord-55fa3876de5c42608ba05c7a2537af43
出典データセット
uspto-grants-2016_08
特許番号
US09408919B2

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