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

HRID 1387
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인쇄 미리보기

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HRID 1387 반응식
[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
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 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

생성물 1

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

시약·촉매·용매 1

HCID 241Benzene용매

실험 절차

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).

후처리

  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))

출처 및 근거

ORD 기록
ord-46f36199a03b442ba91746cd3e3add7b
출처 데이터셋
uspto-grants-1998_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05723666

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