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Potassium Carbonate → 5-Cyclopropyl-4-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxymethyl]-3-(2-trifluoromethoxy-phenyl)-isoxazole

HRID 250279
ノート
印刷プレビュー

反応式

HRID 250279 の反応式
Br[CH2:2][C:3]1[C:4]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[O:17][C:18]([F:21])([F:20])[F:19])=[N:5][O:6][C:7]=1[CH:8]1[CH2:10][CH2:9]1.[CH3:22][C:23]1[CH:24]=[C:25]([OH:38])[CH:26]=[CH:27][C:28]=1[B:29]1[O:33][C:32]([CH3:35])([CH3:34])[C:31]([CH3:37])([CH3:36])[O:30]1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[CH:8]1([C:7]2[O:6][N:5]=[C:4]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=3[O:17][C:18]([F:21])([F:20])[F:19])[C:3]=2[CH2:2][O:38][C:25]2[CH:26]=[CH:27][C:28]([B:29]3[O:33][C:32]([CH3:34])([CH3:35])[C:31]([CH3:37])([CH3:36])[O:30]3)=[C:23]([CH3:22])[CH:24]=2)[CH2:10][CH2:9]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

5

反応物 3

HCID 11430Potassium CarbonateHCID 574432723-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenolHCID 669060924-(Bromomethyl)-5-cyclopropyl-3-[2-(trifluoromethoxy)phenyl]isoxazole

生成物 1

HCID 672723615-Cyclopropyl-4-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxymethyl]-3-(2-trifluoromethoxy-phenyl)-isoxazole

試薬・触媒・溶媒 1

HCID 6342
Acetonitrile
溶媒

反応条件

温度
10 °C

実験手順

To a 5-L 3-neck round bottom flask with a mechanical stirrer, thermocouple, reflux condenser, and drying tube is added 4-bromomethyl-5-cyclopropyl-3-(2-trifluoromethoxy-phenyl)-isoxazole (221.7 g, 0.612 mol, 1.05 eq), acetonitrile (2 L), 3-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenol (136.5 g, 0.583 mol, 1 eq) and potassium carbonate (241.8 g, 1.749 mol, 3 eq). The reaction mixture is heated to reflux and stirred at this temperature for 1 hour. Upon completion of the reaction, as evidenced by thin layer chromatography, the reaction mixture is cooled to 0-20° C. The reaction mixture is filtered and the filter cake is washed with acetonitrile (2×100 mL). The reaction mixture is concentrated under reduced pressure to a solid which is co-evaporated with 1,4-dioxane (500 mL). The title compound is used without further purification. 1H NMR (DMSO-d6, 300 MHz): δ 7.7-7.5 (m, 5H), 6.61 (m, 2H), 4.90 (s, 2H), 2.39 (m, 1H), 2.36 (s, 3H), 1.24 (s, 12H), 1.10 (m, 4H).

後処理

  1. temperatureTo a 5-L 3-neck round bottom flask with a mechanical stirrer, thermocouple, reflux condenser
  2. customdrying tube
  3. temperatureThe reaction mixture is heated
  4. temperatureto reflux
  5. customUpon completion of the reaction
  6. filtrationThe reaction mixture is filtered
  7. washthe filter cake is washed with acetonitrile (2×100 mL)
  8. concentrationThe reaction mixture is concentrated under reduced pressure to a solid which
  9. customThe title compound is used without further purification

出典と根拠

ORDレコード
ord-ad958508a68b4fedb8d806a829f363ed
出典データセット
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07863302B2

反応ノート

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