1,2-Dimethoxyethane → HCID 86704965、化合物

HRID 572152ノート

反応式

HRID 572152 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5](B(O)O)=[CH:4][CH:3]=1.Br[C:12]1[C:13]2[N:14]([CH:18]=[C:19]([CH3:21])[N:20]=2)[CH:15]=[CH:16][CH:17]=1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>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.O>[CH3:21][C:19]1[N:20]=[C:13]2[C:12]([C:5]3[CH:6]=[CH:7][C:2]([OH:1])=[CH:3][CH:4]=3)=[CH:17][CH:16]=[CH:15][N:14]2[CH:18]=1

参加物

7

反応物 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 27343604-Hydroxyphenylboronic acidHCID 708132488-bromo-2-methylimidazo[1,2-a]pyridine

生成物 1

HCID 86704965HCID 86704965、化合物収率 25.7%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回

実験手順

A mixture of 4-hydroxyphenylboronic acid (1.1 g), 8-bromo-2-methylimidazo[1,2-a]pyridine (1.7 g), tetrakis(triphenylphosphine)palladium(0) (0.28 g), sodium carbonate (3.0 g), DME (35 ml) and water (7 ml) was heated under reflux overnight under an argon atmosphere. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) and recrystallized from ethyl acetate to give the title compound (0.46 g).

後処理

  1. temperaturewas heated
  2. temperatureunder reflux overnight under an argon atmosphere
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate)
  8. customrecrystallized from ethyl acetate

出典と根拠

ORDレコード
ord-bb483f2fcd7342b9b81b13c5c0ff76ec
出典データセット
uspto-grants-2015_05
特許番号
US09029388B2

反応ノート

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