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Water → 3,4-Dihydro-4,4-dimethyl-1(carboethoxymethyl)-6-acetyl-naphthalene

HRID 1387
ノート
印刷プレビュー

反応式

HRID 1387 の反応式
[CH3:1][C:2]1([C:7]2[CH:8]=[C:9]3[C:14](=[CH:15][CH:16]=2)[C:13](O)([CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])[CH2:12][CH2:11][C:10]3([CH3:25])[CH3:24])OCC[O:3]1.CC1C=CC(S(O)(=O)=O)=CC=1.O>C1C=CC=CC=1>[CH3:24][C:10]1([CH3:25])[C:9]2[C:14](=[CH:15][CH:16]=[C:7]([C:2](=[O:3])[CH3:1])[CH:8]=2)[C:13]([CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:12][CH2:11]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 962WaterHCID 6101p-Toluenesulfonic acidHCID 18415063(+/-) 6-(2-Methyl-1,3-dioxolan-2-yl)-1,2,3,4-tetrahydro-4,4-dimethyl-1-hydroxy-1-(carboethoxymethyl)-naphthalene

生成物 1

HCID 225715193,4-Dihydro-4,4-dimethyl-1(carboethoxymethyl)-6-acetyl-naphthalene

試薬・触媒・溶媒 1

HCID 241Benzene溶媒

実験手順

A solution of (±)6-(2-methyl-1,3-dioxolan-2-yl)-1,2,3,4-tetrahydro-4,4-dimethyl-1-hydroxy-1-(carboethoxymethyl)-naphthlene ((Compound D16, 321 mg, 0.90 mmol) and catalytic amount of TsOH in 20 ml of benzene was refluxed for 12 h. During the reaction the water generated from the reaction was periodically removed by a Dean-Stark trap. The solvent was removed and the residue was purified by column chromatography (silica, ethyl acetate/hexane (1/3)) to give the title compound as an oil (215 mg).

後処理

  1. customwas periodically removed by a Dean-Stark trap
  2. customThe solvent was removed
  3. customthe residue was purified by column chromatography (silica, ethyl acetate/hexane (1/3))

出典と根拠

ORDレコード
ord-46f36199a03b442ba91746cd3e3add7b
出典データセット
uspto-grants-1998_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05723666

反応ノート

読み込み中…

このページの内容参加物実験手順後処理出典と根拠反応ノート