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Tributylphosphine → methyl[(3S)-6-({4'-[2-(ethylthio)ethoxy]-2',6'-dimethylbiphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate

HRID 15640
ノート
印刷プレビュー

反応式

HRID 15640 の反応式
[CH3:1][O:2][C:3](=[O:15])[CH2:4][C@H:5]1[C:9]2[CH:10]=[CH:11][C:12]([OH:14])=[CH:13][C:8]=2[O:7][CH2:6]1.[CH2:16]([S:18][CH2:19][CH2:20][O:21][C:22]1[CH:27]=[C:26]([CH3:28])[C:25]([C:29]2[CH:34]=[CH:33][CH:32]=[C:31]([CH2:35]O)[CH:30]=2)=[C:24]([CH3:37])[CH:23]=1)[CH3:17].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1(C)C=CC=CC=1.CCCCCC>[CH3:1][O:2][C:3](=[O:15])[CH2:4][C@H:5]1[C:9]2[CH:10]=[CH:11][C:12]([O:14][CH2:35][C:31]3[CH:30]=[C:29]([C:25]4[C:26]([CH3:28])=[CH:27][C:22]([O:21][CH2:20][CH2:19][S:18][CH2:16][CH3:17])=[CH:23][C:24]=4[CH3:37])[CH:34]=[CH:33][CH:32]=3)=[CH:13][C:8]=2[O:7][CH2:6]1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 53393313(S)-Methyl 2-(6-hydroxy-2,3-dihydrobenzofuran-3-yl)acetateHCID 59342614{4'-[2-(Ethylthio)ethoxy]-2',6'-dimethylbiphenyl-3-yl}methanol

生成物 1

HCID 59342557methyl[(3S)-6-({4'-[2-(ethylthio)ethoxy]-2',6'-dimethylbiphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate
収率 60%

試薬・触媒・溶媒 2

HCID 1140Toluene溶媒HCID 8058Hexane溶媒

実験手順

A solution of methyl[(3S)-6-hydroxy-2,3-dihydro-1-benzofuran-3-yl]acetate (0.250 g, 1.20 mmol), {4′-[2-(ethylthio)ethoxy]-2′,6′-dimethylbiphenyl-3-yl}methanol (0.380 g, 1.20 mmol) and tributylphosphine (0.388 g, 1.92 mmol) in toluene (20 mL) was stirred, 1,1′-(azodicarbonyl)dipiperidine (0.484 g, 1.92 mmol) was added, and the mixture was stirred at room temperature for 1 hr under nitrogen atmosphere. Hexane (10 mL) was added to the reaction mixture, the precipitated insoluble substance was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=5:95-40:60) to give the title compound (0.363 g, yield 60%) as a pale-yellow oil.

後処理

  1. filtrationthe precipitated insoluble substance was filtered off
  2. concentrationthe filtrate was concentrated under reduced pressure
  3. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=5:95-40:60)

出典と根拠

ORDレコード
ord-3b8d2eeac70e4f3b8da5bb99e838878e
出典データセット
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07732626B2

反応ノート

読み込み中…

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