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Sodium Bicarbonate → 5-(4-Fluorophenyl)-6-{hydroxy[4-(trifluoromethoxy)phenyl]methyl}-7-isopropylspiro[chromen-2,1'-cyclobutan]-4(3H)-one

HRID 1516722
ノート
印刷プレビュー

反応式

HRID 1516722 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:20]([CH:21]=[O:22])=[C:19]([CH:23]([CH3:25])[CH3:24])[CH:18]=[C:17]3[C:9]=2[C:10](=[O:26])[CH2:11][C:12]2([O:16]3)[CH2:15][CH2:14][CH2:13]2)=[CH:4][CH:3]=1.[F:27][C:28]([F:39])([F:38])[O:29][C:30]1[CH:35]=[CH:34][C:33]([Mg]Br)=[CH:32][CH:31]=1.C(=O)(O)[O-].[Na+]>O1CCCC1.O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:20]([CH:21]([OH:22])[C:33]3[CH:32]=[CH:31][C:30]([O:29][C:28]([F:27])([F:38])[F:39])=[CH:35][CH:34]=3)=[C:19]([CH:23]([CH3:24])[CH3:25])[CH:18]=[C:17]3[C:9]=2[C:10](=[O:26])[CH2:11][C:12]2([O:16]3)[CH2:15][CH2:14][CH2:13]2)=[CH:4][CH:3]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 516892Sodium BicarbonateHCID 580030415-(4-Fluorophenyl)-7-isopropyl-4-oxo-3,4-dihydrospiro[chromen-2,1'-cyclobutane]-6-carbaldehydeHCID 178506384HCID 178506384、化合物

生成物 1

HCID 580029385-(4-Fluorophenyl)-6-{hydroxy[4-(trifluoromethoxy)phenyl]methyl}-7-isopropylspiro[chromen-2,1'-cyclobutan]-4(3H)-one

試薬・触媒・溶媒 2

HCID 962Water
溶媒
HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-70 °C

実験手順

Under argon, 0.60 g (1.70 mmol) of 5-(4-fluorophenyl)-7-isopropyl-4-oxo-3,4-dihydrospiro-[chromen-2,1′-cyclobutane]-6-carbaldehyde (Example 51A) is suspended in 15 ml of tetrahydrofuran and cooled to −70° C. 4.3 ml (2.13 mmol) of a freshly prepared 0.5 M solution of [4-(trifluoromethoxy)phenyl]magnesium bromide in tetrahydrofuran are added slowly. The mixture is stirred briefly at −78° C. and then warmed to 0° C. After 1 h, the mixture is hydrolyzed with sodium bicarbonate solution, diluted with water and extracted repeatedly with ethyl acetate. The combined organic phases are washed twice with saturated sodium chloride solution, dried over sodium sulfate, filtered and concentrated. The crude product is purified on a silica gel column (mobile phase: cyclohexane/ethyl acetate 25:1→10:1). This gives 710 mg (81% of theory) of the title compound in a purity of 70%.

後処理

  1. temperaturewarmed to 0° C
  2. extractionextracted repeatedly with ethyl acetate
  3. washThe combined organic phases are washed twice with saturated sodium chloride solution
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product is purified on a silica gel column (mobile phase: cyclohexane/ethyl acetate 25:1→10:1)

出典と根拠

ORDレコード
ord-dd100a6f72c84fe59c25999e84bb1d9d
出典データセット
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08227511B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート