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3,5-Dimethoxyphenol → 2,3-Dimethoxy-7-[2-(3,5-dimethoxyphenoxy)ethyl]-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione

HRID 2268558
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HRID 2268558 반응식
[OH:1][CH2:2][CH2:3][CH:4]1[CH2:10][CH2:9][C:8]2[C:11](=[O:20])[C:12]([O:18][CH3:19])=[C:13]([O:16][CH3:17])[C:14](=[O:15])[C:7]=2[CH2:6][CH2:5]1.[CH3:21][O:22][C:23]1[CH:24]=[C:25](O)[CH:26]=[C:27]([O:29][CH3:30])[CH:28]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1COCC1>[CH3:17][O:16][C:13]1[C:14](=[O:15])[C:7]2[CH2:6][CH2:5][CH:4]([CH2:3][CH2:2][O:1][C:25]3[CH:24]=[C:23]([O:22][CH3:21])[CH:28]=[C:27]([O:29][CH3:30])[CH:26]=3)[CH2:10][CH2:9][C:8]=2[C:11](=[O:20])[C:12]=1[O:18][CH3:19]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 103833,5-DimethoxyphenolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 183485737-(2-Hydroxyethyl)-2,3-dimethoxy-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione

생성물 1

HCID 183485172,3-Dimethoxy-7-[2-(3,5-dimethoxyphenoxy)ethyl]-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione수율 70.6%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

To a solution of 7-(2-hydroxyethyl)-2,3-dimethoxy-4,5,6,7,8,9-hexahydro-1H-benzo[a]cycloheptene-1,4-dione (103 mg), 3,5-dimethoxyphenol (168 mg) and triphenylphosphine (125 mg) in THF (2 ml) was added a solution of diethyl azodicarboxylate (81 mg) in THF (1 ml) at room temperature. The reaction mixture was stirred at room temperature for 2 hr and then concentrated in vacuo. The residue was purified by alumina column chromatography(ethyl acetate:hexane=1:4) and then with recrystallization from ethyl acetate-hexane to obtain the entitled compound (108 mg).

후처리

  1. concentrationconcentrated in vacuo
  2. customThe residue was purified by alumina column chromatography(ethyl acetate:hexane=1:4)
  3. customwith recrystallization from ethyl acetate-hexane

출처 및 근거

ORD 기록
ord-f503bd01a92e427cb7ea359bab9a5490
출처 데이터셋
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06326369B1

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