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Pyridine → (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide

HRID 2221878
ノート
印刷プレビュー

反応式

HRID 2221878 の反応式
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([NH2:28])=O)=[CH:22][N:21]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:49])=CC=1.N1C=CC=CC=1>O>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26](=[S:49])[NH2:28])=[CH:22][N:21]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 1049PyridineHCID 87949Lawesson's reagentHCID 69216833(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide

生成物 1

HCID 86605828(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide収率 22%

試薬・触媒・溶媒 1

HCID 962
Water
溶媒

実験手順

A mixture of (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide (2.50 g), Lawesson's reagent (2.26 g) and pyridine (15 mL) was heated under reflux for 30 min. After concentration of the reaction mixture, water was added to the residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide as yellow crystals (0.56 g, yield 22%) from a fraction eluted with ethyl acetate-hexane (1:1, v/v). Recrystallization from ethyl acetate-diethyl ether gave yellow prism crystals. melting point: 129-131° C.

後処理

  1. temperaturewas heated
  2. temperatureunder reflux for 30 min
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-0c15e4a27f98412c897d0044b7e4d2e2
出典データセット
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07368578B2

反応ノート

読み込み中…

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