Cesium carbonate → HCID 66600037、化合物

HRID 1811900ノート

反応式

HRID 1811900 の反応式
Cl[C:2]1[N:7]=[C:6]([CH3:8])[N:5]=[C:4]([NH:9][C:10](=[O:12])[CH3:11])[CH:3]=1.[Cl:13][C:14]1[CH:15]=[N:16][CH:17]=[CH:18][C:19]=1B1OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[Cs+].[Cs+].O1CCOCC1>[NH4+].[Cl-].[Pd+2].ClC1C=C[C-](P(C2C=CC=CC=2)C2C=CC=CC=2)C=1Cl.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2].O>[Cl:13][C:14]1[CH:15]=[N:16][CH:17]=[CH:18][C:19]=1[C:2]1[N:7]=[C:6]([CH3:8])[N:5]=[C:4]([NH:9][C:10](=[O:12])[CH3:11])[CH:3]=1

参加物

8

反応物 4

HCID 10796Cesium carbonateHCID 312751,4-DioxaneHCID 243561n-(6-chloro-2-methylpyrimidin-4-yl)acetamideHCID 447551543-Chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

生成物 1

HCID 66600037HCID 66600037、化合物収率 31.6%

試薬・触媒・溶媒 3

HCID 178478230HCID 178478230、化合物触媒HCID 962Water溶媒HCID 25517Ammonium Chloride溶媒

反応条件

温度
100 °C

実験手順

A mixture of N-(6-chloro-2-methylpyrimidin-4-yl)acetamide (228 mg, 1228 μmol), 3-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (294 mg, 1228 μmol, Combi-Blocks, Inc., San Diego, Calif.), dichloro 1,1′-bis(diphenylphosphino)ferrocene palladium (II) (100 mg, 123 μmol), cesium carbonate (197 μl, 2457 μmol), dioxane (4 mL) and water (0.5 mL) was stirred at 100° C. for 30 min. The mixture was cooled down to room temperature. The reaction mixture was diluted with saturated NH4Cl (5 mL) and extracted with EtOAc (2×30 mL). The organic extract was washed with saturated NaCl (5 mL), dried over Na2SO4, filtered, concentrated in vacuo and the residue was purified by silica gel chromatography eluting with EtOAc to give N-(6-(3-chloropyridin-4-yl)-2-methylpyrimidin-4-yl)acetamide (102 mg, 31.6% yield). 1H NMR (300 MHz, CDCl3) δ 8.80 (s, 1H); 8.56 (d, J=5.41 Hz, 1H); 8.34 (s, 1H); 7.94 (s, 1H); 7.44 (d, J=5.26 Hz, 1H); 2.69 (s, 3H); 2.25 (s, 3H). m/z (ESI, +ve ion) 263 (M+H)+.

後処理

  1. temperatureThe mixture was cooled down to room temperature
  2. extractionextracted with EtOAc (2×30 mL)
  3. extractionThe organic extract
  4. washwas washed with saturated NaCl (5 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customthe residue was purified by silica gel chromatography
  9. washeluting with EtOAc

出典と根拠

ORDレコード
ord-50be74ec412f4b7096f68babea5a725e
出典データセット
uspto-grants-2013_01
特許番号
US08362241B2

反応ノート

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