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Sodium borohydride → Methyl [4-(5-hydroxy-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl)-phenyl]-acetate

HRID 278810
ノート
印刷プレビュー

反応式

HRID 278810 の反応式
[CH3:1][C:2]1([CH3:26])[C:11]2[CH:10]=[C:9]([C:12]#[C:13][C:14]3[CH:19]=[CH:18][C:17]([CH2:20][C:21]([O:23][CH3:24])=[O:22])=[CH:16][CH:15]=3)[CH:8]=[CH:7][C:6]=2[C:5](=[O:25])[CH2:4][CH2:3]1.[BH4-].[Na+]>CO>[OH:25][CH:5]1[CH2:4][CH2:3][C:2]([CH3:1])([CH3:26])[C:11]2[CH:10]=[C:9]([C:12]#[C:13][C:14]3[CH:15]=[CH:16][C:17]([CH2:20][C:21]([O:23][CH3:24])=[O:22])=[CH:18][CH:19]=3)[CH:8]=[CH:7][C:6]1=2
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 4311764Sodium borohydrideHCID 12971710Methyl [4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-phenyl]-acetate2 回

生成物 1

HCID 86585937Methyl [4-(5-hydroxy-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl)-phenyl]-acetate収率 87%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
0 °C

実験手順

To a solution of methyl [4-(8,8-dimethyl-5-oxo-5,6,7,8-tetrahydro-naphthalen-2-yl-ethynyl)-phenyl]-acetate (Compound 4) in 5 mL MeOH at 0° C. was added NaBH4(18.0 mg, 0.48 mmol). The reaction was stirred at 0° C. for 2 hours and then quenched by the addition of H2O. The solution was diluted with Et2O and washed with H2O and saturated aqueous NaCl before being dried (MgSO4) and the solvents were removed under reduced pressure. Column chromatography (20-40% EtOAc-hexanes) afforded 140.0 mg (87%) of the title compound as a colorless oil.

後処理

  1. customquenched by the addition of H2O
  2. additionThe solution was diluted with Et2O
  3. washwashed with H2O and saturated aqueous NaCl
  4. dry with materialbefore being dried (MgSO4)
  5. customthe solvents were removed under reduced pressure

出典と根拠

ORDレコード
ord-2e52c8619f354f9c8866a27c0ff9c0bb
出典データセット
uspto-grants-2002_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06359135B1

反応ノート

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