Sodium Carbonate → 6-(4-aminophenyl)-N-[(1S)-1-phenylethyl]pyrazin-2-amine

HRID 1244408ノート

反応式

HRID 1244408 の反応式
Cl[C:2]1[N:7]=[C:6]([NH:8][C@H:9]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[CH3:10])[CH:5]=[N:4][CH:3]=1.CC1(C)C(C)(C)OB([C:25]2[CH:31]=[CH:30][C:28]([NH2:29])=[CH:27][CH:26]=2)O1.C([O-])([O-])=O.[Na+].[Na+]>C1(C)C=CC=CC=1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:29][C:28]1[CH:30]=[CH:31][C:25]([C:2]2[N:7]=[C:6]([NH:8][C@H:9]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[CH3:10])[CH:5]=[N:4][CH:3]=2)=[CH:26][CH:27]=1

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 27346204-(Tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 587170806-Chloro-N-[(1S)-1-phenylethyl]pyrazin-2-amine

生成物 1

HCID 587170936-(4-aminophenyl)-N-[(1S)-1-phenylethyl]pyrazin-2-amine

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 1140Toluene溶媒

実験手順

A mixture of 6-chloro-N-[(1S)-1-phenylethyl]pyrazin-2-amine (1.10 g, 4.71 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) aniline (1.10 g, 5.02 mmol), (PPh3)4Pd (580 mg, 0.5 mmol) and a Na2CO3 solution (2.6 ml, 2M solution) in toluene (20 ml) was heated under reflux for 40 h. Upon cooling, the mixture was diluted with water (30 mL) and the product extracted with ethyl acetate (3×40 ml). The organic layers were combined, washed with brine (30 ml), dried (Na2SO4), and the solvent removed in vacuo. The residue was purified by column chromatography, eluting with a hexane-ethyl acetate (2:3) to furnish the desired product from the polar fractions (0.86 g, 63%).

後処理

  1. temperatureunder reflux for 40 h
  2. temperatureUpon cooling
  3. extractionthe product extracted with ethyl acetate (3×40 ml)
  4. washwashed with brine (30 ml)
  5. dry with materialdried (Na2SO4)
  6. customthe solvent removed in vacuo
  7. customThe residue was purified by column chromatography
  8. washeluting with a hexane-ethyl acetate (2:3)

出典と根拠

ORDレコード
ord-6911be29f3504cf2bdba68e191247300
出典データセット
uspto-grants-2006_10
特許番号
US07122550B2

反応ノート

読み込み中…