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Tributylphosphine → Methyl [(3S)-6-({3'-fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate

HRID 1908917
ノート
印刷プレビュー

反応式

HRID 1908917 の反応式
[OH:1][C:2]1[CH:15]=[CH:14][C:5]2[C@H:6]([CH2:9][C:10]([O:12][CH3:13])=[O:11])[CH2:7][O:8][C:4]=2[CH:3]=1.[F:16][C:17]1[C:18]([CH3:40])=[C:19]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38]O)[CH:33]=2)[C:20]([CH3:31])=[CH:21][C:22]=1[O:23][CH2:24][CH2:25][CH2:26][S:27]([CH3:30])(=[O:29])=[O:28].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>CCCCCC.O1CCCC1.C1(C)C=CC=CC=1>[F:16][C:17]1[C:18]([CH3:40])=[C:19]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38][O:1][C:2]3[CH:15]=[CH:14][C:5]4[C@H:6]([CH2:9][C:10]([O:12][CH3:13])=[O:11])[CH2:7][O:8][C:4]=4[CH:3]=3)[CH:33]=2)[C:20]([CH3:31])=[CH:21][C:22]=1[O:23][CH2:24][CH2:25][CH2:26][S:27]([CH3:30])(=[O:29])=[O:28]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 53393313(S)-Methyl 2-(6-hydroxy-2,3-dihydrobenzofuran-3-yl)acetateHCID 59342565{3'-Fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanol

生成物 1

HCID 59342579Methyl [(3S)-6-({3'-fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate
収率 77%

試薬・触媒・溶媒 3

HCID 1140Toluene溶媒HCID 8028Tetrahydrofuran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 (0.729 g, 3.50 mmol), {3′-fluoro-2′,6′-dimethyl-4′-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanol (1.28 g, 3.50 mmol) and tributylphosphine (1.13 g, 5.60 mmol) in a mixed solvent of toluene (45 mL) and tetrahydrofuran (5 mL) was stirred, 1,1′-(azodicarbonyl)dipiperidine (1.41 g, 5.60 mmol) was added, and the mixture was stirred at room temperature for 4 hr under nitrogen atmosphere. Hexane (50 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=40:60-80:20) and basic silica gel column chromatography (ethyl acetate:hexane=40:60-100:0), and the obtained crystals were recrystallized from heptane-ethyl acetate to give the title compound (1.50 g, yield 77%) as colorless crystals.

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=40:60-80:20) and basic silica gel column chromatography (ethyl acetate:hexane=40:60-100:0)
  4. customthe obtained crystals were recrystallized from heptane-ethyl acetate

出典と根拠

ORDレコード
ord-fd4129143eb342ce9c06619c05254874
出典データセット
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08598226B2

反応ノート

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