Ethyl Acetate → (E)-tert-butyl 4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate

HRID 2202403ノート

反応式

HRID 2202403 の反応式
C([O:4][C:5]1(/[CH:18]=[CH:19]/[CH2:20][C:21]([F:24])([F:23])[F:22])[CH2:10][CH2:9][N:8]([C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[CH2:7][CH2:6]1)(=O)C.[OH-].[Na+].CC(=O)OCC>CO>[OH:4][C:5]1(/[CH:18]=[CH:19]/[CH2:20][C:21]([F:24])([F:22])[F:23])[CH2:6][CH2:7][N:8]([C:11]([O:13][C:14]([CH3:17])([CH3:15])[CH3:16])=[O:12])[CH2:9][CH2:10]1

参加物

5

反応物 3

HCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 90447582HCID 90447582、化合物

生成物 1

HCID 90447581(E)-tert-butyl 4-hydroxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a mixture of (E)-tert-butyl 4-acetoxy-4-(4,4,4-trifluorobut-1-enyl)piperidine-1-carboxylate (200 mg, 0.57 mmol) in methanol (5 mL) was added 2M NaOH (2 mL, 4 mmol), the mixture was held stirring at r.t. for 16 hrs, when TLC (20% EA/PE) indicated completion of the reaction. The mixture was concentrated in vacuo, the residue was diluted with brine and extracted with EtOAc, and the organic layer was concentrated in vacuo to get the crude product, which was used directly for the next step.

後処理

  1. customcompletion of the reaction
  2. concentrationThe mixture was concentrated in vacuo
  3. additionthe residue was diluted with brine
  4. extractionextracted with EtOAc
  5. concentrationthe organic layer was concentrated in vacuo

出典と根拠

ORDレコード
ord-e555021e296348798fe2bb6e8106c021
出典データセット
uspto-grants-2016_06
特許番号
US09365545B2

反応ノート

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