Cesium carbonate → N4-(2-(benzyloxy)-5-nitrophenyl)-5-fluoro-N2-(4-(2-methoxyethoxy)phenyl)pyrimidine-2,4-diamine

HRID 2274272ノート

反応式

HRID 2274272 の反応式
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([N+:15]([O-:17])=[O:16])=[CH:11][C:10]=1[NH:18][C:19]1[C:24]([F:25])=[CH:23][N:22]=[C:21](Cl)[N:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:27][O:28][CH2:29][CH2:30][O:31][C:32]1[CH:38]=[CH:37][C:35]([NH2:36])=[CH:34][CH:33]=1.C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>O1CCOCC1>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([N+:15]([O-:17])=[O:16])=[CH:11][C:10]=1[NH:18][C:19]1[C:24]([F:25])=[CH:23][N:22]=[C:21]([NH:36][C:35]2[CH:34]=[CH:33][C:32]([O:31][CH2:30][CH2:29][O:28][CH3:27])=[CH:38][CH:37]=2)[N:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 38798854-(2-Methoxyethoxy)anilineHCID 86724343N-(2-(benzyloxy)-5-nitrophenyl)-2-chloro-5-fluoropyrimidin-4-amine

生成物 1

HCID 86724344N4-(2-(benzyloxy)-5-nitrophenyl)-5-fluoro-N2-(4-(2-methoxyethoxy)phenyl)pyrimidine-2,4-diamine収率 36.2%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

反応条件

温度
80 °C

実験手順

In a 100 mL 3-neck RBF, N-(2-(benzyloxy)-5-nitrophenyl)-2-chloro-5-fluoropyrimidin-4-amine (0.205 g), 4-(2-methoxyethoxy)aniline (0.137 g), Cs2CO3 (0.266 g) and Xantphos (0.032 g) were taken in degassed 1,4-dioxane (8.0 mL) and reaction mixture was degassed under argon for 30 minutes. Palladium acetate (0.013 g) was added to reaction mixture and again it was degassed for 30 minutes. The reaction mixture was heated to 80° C. and stirred for 3.5 h. The reaction was monitored on TLC using hexane:ethyl acetate: (5:5) as mobile phase. After completion, the reaction mixture was allowed to cool at room temperature. The reaction mixture was poured into water and product was extracted with ethyl acetate (3×25 mL). The ethyl acetate layer washed with brine solution, dried over sodium sulfate and concentrated under reduced pressure. Crude material was purified by triturating with diethyl ether to give 0.1 g of N4-(2-(benzyloxy)-5-nitrophenyl)-5-fluoro-N2-(4-(2-methoxyethoxy)phenyl)pyrimidine-2,4-diamine. 1H NMR: CDCl3 (400 MHz): 3.47 (d, 3H, J=11.6), 3.77 (dd, 2H, J=4.8, 8.8), 4.15 (t, 2H, J=4.8), 5.28 (s, 2H), 6.96 (d, 1H, J=8.8), 7.03 (d, 1H, J=8.8), 7.08 (d, 1H, J=9.2), 7.45 (m, 7H), 7.83 (s, 1H), 7.9 (d, 2H, J=2.8), 8.02 (dd, 1H, J=2.1, 6.8), 9.18 (s, 1H).

後処理

  1. customreaction mixture
  2. customwas degassed under argon for 30 minutes
  3. additionPalladium acetate (0.013 g) was added to reaction mixture and again it
  4. customwas degassed for 30 minutes
  5. temperatureto cool at room temperature
  6. additionThe reaction mixture was poured into water and product
  7. extractionwas extracted with ethyl acetate (3×25 mL)
  8. washThe ethyl acetate layer washed with brine solution
  9. dry with materialdried over sodium sulfate
  10. concentrationconcentrated under reduced pressure
  11. customCrude material was purified
  12. customby triturating with diethyl ether

出典と根拠

ORDレコード
ord-3df070f8996b4eba97ce462afb71f77b
出典データセット
uspto-grants-2015_09
特許番号
US09126950B2

反応ノート

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