Tetrabutylammonium Fluoride → N-{(1RS,2SR)-2-(3,4-dichlorobenzyl)-3-hydroxy-1-methylpropyl}phthalimide

HRID 52861ノート

反応式

HRID 52861 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[Cl:32])[CH2:5][CH:6]([CH2:20][O:21][Si](C(C)(C)C)(C)C)[CH:7]([N:9]1[C:13](=[O:14])[C:12]2=[CH:15][CH:16]=[CH:17][CH:18]=[C:11]2[C:10]1=[O:19])[CH3:8].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[Cl:32])[CH2:5][CH:6]([CH2:20][OH:21])[CH:7]([N:9]1[C:10](=[O:19])[C:11]2=[CH:18][CH:17]=[CH:16][CH:15]=[C:12]2[C:13]1=[O:14])[CH3:8]

参加物

4

反応物 2

HCID 2724141Tetrabutylammonium FluorideHCID 19073670N-{(1RS,2SR)-2-(3,4-dichlorobenzyl)-3-(tert-butyldimethylsilyloxy)-1-methylpropyl}phthalimide

生成物 1

HCID 19073790N-{(1RS,2SR)-2-(3,4-dichlorobenzyl)-3-hydroxy-1-methylpropyl}phthalimide収率 47.5%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

1.07 g of the phthalimide compound thus obtained was dissolved in 15 ml of tetrahydrofuran, and 2.6 ml of a 1M tetrahydrofuran solution of tetrabutylammonium fluoride was added thereto. The mixture was stirred at room temperature overnight. The reaction solution was evaporated to dryness under reduced pressure. Then, the residue was dissolved in a liquid mixture of water and ethyl ether. The organic layer was collected by separation and then dried over anhydrous magnesium sulfate. The drying agent was separated by filtration, and then the solvent was distilled off under reduced pressure. The residue was subjected to medium pressure liquid chromatography (hexane/ethyl acetate=4/1→2/1) to obtain 0.39 g (yield: 47%) of N-{(1RS, 2SR)-2-(3,4-dichlorobenzyl)-3-hydroxy-1-methylpropyl}phthalimide.

後処理

  1. customThe reaction solution was evaporated to dryness under reduced pressure
  2. dissolutionThen, the residue was dissolved in a liquid mixture of water and ethyl ether
  3. customThe organic layer was collected by separation
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe drying agent was separated by filtration
  6. distillationthe solvent was distilled off under reduced pressure

出典と根拠

ORDレコード
ord-bbba894ec97946ac83af0016b10120d8
出典データセット
uspto-grants-1997_04
特許番号
US05616803

反応ノート

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