Potassium Hydroxide → 1-(Ethoxycarbonyl)cyclopentane-1-carboxylic acid

HRID 345106ノート

反応式

HRID 345106 の反応式
[C:1]1([C:11]([O:13]CC)=[O:12])([C:6]([O:8][CH2:9][CH3:10])=[O:7])[CH2:5][CH2:4][CH2:3][CH2:2]1.[OH-].[K+]>CCO>[CH2:9]([O:8][C:6]([C:1]1([C:11]([OH:13])=[O:12])[CH2:2][CH2:3][CH2:4][CH2:5]1)=[O:7])[CH3:10]

参加物

4

反応物 2

HCID 14797Potassium HydroxideHCID 77830Diethyl 1,1-cyclopentanedicarboxylate

生成物 1

HCID 543132381-(Ethoxycarbonyl)cyclopentane-1-carboxylic acid収率 0.1%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒2 回

実験手順

To a solution of diethyl 1,1-cyclopentane dicarboxylate (2.5 g, 11.68 mol) in EtOH (10 ml) was added dropwise a solution of KOH (654 mg, 11.68 mmol) in EtOH (10 ml) over 1/2 hour. The resulting mixture was stirred at room temperature for 96 hr, concentrated under vacuum, and partitioned between H2O and EtOAc. The aqueous layer was acidified with concentrated HCl and extracted with EtOAc. The EtOAc extracts were washed (brine), dried (Na2SO4), filtered, and concentrated under vacuum to give the product (1.73 g) as a clear oil.

後処理

  1. concentrationconcentrated under vacuum
  2. custompartitioned between H2O and EtOAc
  3. extractionextracted with EtOAc
  4. washThe EtOAc extracts were washed (brine)
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under vacuum

出典と根拠

ORDレコード
ord-733f6eee3bea450a9a3f2333a189046e
出典データセット
uspto-grants-1991_10
特許番号
US05055450

反応ノート

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