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Methanesulfonic Acid → N-[3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-(trifluoromethyl)pyrimidin-2-amine

HRID 410395
ノート
印刷プレビュー

反応式

HRID 410395 の反応式
[F:1][C:2]1[CH:3]=[C:4]([CH:6]=[C:7]([B:9]2[O:13][C:12]([CH3:15])([CH3:14])[C:11]([CH3:17])([CH3:16])[O:10]2)[CH:8]=1)[NH2:5].Cl[C:19]1[N:24]=[C:23]([C:25]([F:28])([F:27])[F:26])[CH:22]=[CH:21][N:20]=1.O1CCOCC1.CS(O)(=O)=O>C(OCC)(=O)C>[F:1][C:2]1[CH:3]=[C:4]([NH:5][C:19]2[N:24]=[C:23]([C:25]([F:28])([F:27])[F:26])[CH:22]=[CH:21][N:20]=2)[CH:6]=[C:7]([B:9]2[O:13][C:12]([CH3:15])([CH3:14])[C:11]([CH3:17])([CH3:16])[O:10]2)[CH:8]=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 4

HCID 6395Methanesulfonic AcidHCID 312751,4-DioxaneHCID 27739122-Chloro-4-(trifluoromethyl)pyrimidineHCID 597700393-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline

生成物 1

HCID 58456086N-[3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-(trifluoromethyl)pyrimidin-2-amine収率 76.4%

試薬・触媒・溶媒 1

HCID 8857Ethyl Acetate溶媒

反応条件

温度
100 °C

実験手順

To a flask containing 3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (3.3 g, 14.00 mmol) and 2-chloro-4-(trifluoromethyl)pyrimidine (2.94 g, 16.10 mmol) were added dioxane (44 mL) and methanesulfonic acid (1.55 g, 16.10 mmol) and the reaction was heated at 100° C. overnight. The reaction was cooled, diluted with ethyl acetate, washed with water, dried over magnesium sulfate, filtered and concentrated. Flash chromatography was used for purification to yield N-[3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-(trifluoromethyl)pyrimidin-2-amine (4.10 g, 10.70 mmol, 76% yield). MS ESI: [M+H]+ m/z 384. 1H NMR (500 MHz, DMSO-d6) δ 10.41 (s, 1H), 8.85 (d, J=4.9, 1H), 7.92 (dt, J=2.3, 12.1, 1H), 7.77 (d, J=1.5, 1H), 7.32 (d, J=4.9, 1H), 6.98 (dd, J=2.2, 8.4, 1H), 1.28 (s, 12H).

後処理

  1. temperatureThe reaction was cooled
  2. washwashed with water
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customFlash chromatography was used for purification

出典と根拠

ORDレコード
ord-a96f0386f42949339aac42544b7c1c35
出典データセット
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08759366B2

反応ノート

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