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Ethanol → 1-[5-(1-{[tert-butyl(dimethyl)silyl]oxy}ethyl)pyridin-2-yl]-5-[4-(cyclopropylsulfonyl)phenyl]-2-methyl-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione

HRID 1881849
ノート
印刷プレビュー

反応式

HRID 1881849 の反応式
[CH:1]1([S:4]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]([C:21](=[O:25])[CH:22]=[CH:23][CH3:24])[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:9][CH:8]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1.C(O)C.O1CCCC1.[Si:34]([O:41][CH:42]([C:44]1[CH:45]=[CH:46][C:47]([CH:50]=[O:51])=[N:48][CH:49]=1)[CH3:43])([C:37]([CH3:40])([CH3:39])[CH3:38])([CH3:36])[CH3:35]>[Cl-].C([N+]1C(C)=C(CCO)SC=1)C1C=CC=CC=1.C(OCC)(=O)C.C(N(CC)CC)C>[Si:34]([O:41][CH:42]([C:44]1[CH:45]=[CH:46][C:47]([C:50](=[O:51])[CH:23]([CH3:24])[CH2:22][C:21](=[O:25])[CH:13]([C:10]2[CH:9]=[CH:8][C:7]([S:4]([CH:1]3[CH2:2][CH2:3]3)(=[O:6])=[O:5])=[CH:12][CH:11]=2)[CH2:14][CH:15]2[CH2:20][CH2:19][O:18][CH2:17][CH2:16]2)=[N:48][CH:49]=1)[CH3:43])([C:37]([CH3:40])([CH3:38])[CH3:39])([CH3:36])[CH3:35]
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 702EthanolHCID 8028TetrahydrofuranHCID 593313475-(1-{[Tert-butyl(dimethyl)silyl]oxy}ethyl)pyridine-2-carbaldehydeHCID 684311882-[4-(cyclopropylsulfonyl)phenyl]-1-(tetrahydro-2H-pyran-4-yl)hex-4-en-3-one

生成物 1

HCID 593312241-[5-(1-{[tert-butyl(dimethyl)silyl]oxy}ethyl)pyridin-2-yl]-5-[4-(cyclopropylsulfonyl)phenyl]-2-methyl-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione
収率 58%

試薬・触媒・溶媒 3

HCID 28333523-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride触媒HCID 8471Triethylamine溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 2-[4-(cyclopropylsulfonyl)phenyl]-1-(tetrahydro-2H-pyran-4-yl)hex-4-en-3-one (180 mg) in a mixed solvent of ethanol (3 mL) and tetrahydrofuran (3 mL) were added 5-(1-{[tert-butyl(dimethyl)silyl]oxy}ethyl)pyridine-2-carbaldehyde (158 mg), 3-benzyl-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-3-ium chloride (14.7 mg) and triethylamine (29.9 μL), and the mixture was stirred with heating under reflux under argon atmosphere for 3 hr. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and washed with water. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and the title compound (180 mg, yield 58%) was obtained as a pale-yellow oil from a fraction eluted with ethyl acetate-hexane (1:1, volume ratio). MS: 628 (MH+).

後処理

  1. temperaturewith heating
  2. temperatureunder reflux under argon atmosphere for 3 hr
  3. washwashed with water
  4. washThe ethyl acetate layer was washed with saturated brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-c8166407cc3a449d8d3270a8738e4e25
出典データセット
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08318746B2

反応ノート

読み込み中…

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