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Cesium carbonate → 4-Benzyloxy-3-[(4-(2-methoxycarbonylphenyl)thio-3,5,6-trifluoropyridin-2-yl)oxy]benzonitrile

HRID 324991
ノート
印刷プレビュー

反応式

HRID 324991 の反応式
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[S:11][C:12]1[C:17]([F:18])=[C:16]([F:19])[N:15]=[C:14](F)[C:13]=1[F:21])=[O:4].[CH2:22]([O:29][C:30]1[CH:35]=[CH:34][C:33]([C:36]#[N:37])=[CH:32][C:31]=1[OH:38])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[OH-].[K+]>CN(C=O)C.C(OCC)(=O)C>[CH2:22]([O:29][C:30]1[CH:35]=[CH:34][C:33]([C:36]#[N:37])=[CH:32][C:31]=1[O:38][C:14]1[C:13]([F:21])=[C:12]([S:11][C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[C:3]([O:2][CH3:1])=[O:4])[C:17]([F:18])=[C:16]([F:19])[N:15]=1)[C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=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 10796Cesium carbonateHCID 14797Potassium HydroxideHCID 154534494-(2-Methoxycarbonylphenyl)thio-2,3,5,6-tetrafluoropyridineHCID 154534514-(Benzyloxy)-3-hydroxybenzonitrile

生成物 1

HCID 154534524-Benzyloxy-3-[(4-(2-methoxycarbonylphenyl)thio-3,5,6-trifluoropyridin-2-yl)oxy]benzonitrile収率 82%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒
HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 4-(2-methoxycarbonylphenyl)thio-2,3,5,6-tetrafluoropyridine (1.8 g, 5.7 mmol) in DMF (25 mL) was added 2-benzyloxy-5-cyanophenol (1.3 g, 5.8 mmol) and cesium carbonate (2.2 g, 6.8 mmol). The resultant mixture was stirred at 40° C. for 12 hours. The mixture was then cooled to ambient temperature and poured into 100 mL of 0.5 M aqueous KOH solution and 100 mL of ethyl acetate. The aqueous layer was separated and extracted twice further with 100 mL portions of ethyl acetate. The combined organic extracts were washed with 0.5 M aqueous KOH solution (200 mL), then brine (200 mL), dried over MgSO4, filtered, and concentrated in vacuo to afford a yellow solid. Recrystallization from ethyl acetate/hexanes afforded 2.4 g (82% yield) of 4-benzyloxy-3-[(4-(2-methoxycarbonylphenyl)thio-3,5,6-trifluoropyridin-2-yl)oxy]benzonitrile, a compound of formula (E), as a white, crystalline solid: NMR (CDCl3) 8.0 (m, 1), 7.5 (m, 2), 7.4-7.1 (m, 8), 6.8 (br t, 1), 5.2 (s, 2), 4.0 (s, 3) ppm.

後処理

  1. customThe aqueous layer was separated
  2. extractionextracted twice further with 100 mL portions of ethyl acetate
  3. washThe combined organic extracts were washed with 0.5 M aqueous KOH solution (200 mL)
  4. dry with materialbrine (200 mL), dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto afford a yellow solid
  8. customRecrystallization from ethyl acetate/hexanes

出典と根拠

ORDレコード
ord-c4db2706621f4f699c216a01512dab90
出典データセット
uspto-grants-2001_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06221886B1

反応ノート

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