(2-Methoxy-4,6-dimethylphenyl)boronic acid → HCID 22490043、化合物

HRID 2180005ノート

反応式

HRID 2180005 の反応式
Cl[C:2]1[N:7]=[C:6]([O:8][CH3:9])[C:5]([OH:10])=[C:4]([CH3:11])[N:3]=1.[CH3:12][O:13][C:14]1[CH:19]=[C:18]([CH3:20])[CH:17]=[C:16]([CH3:21])[C:15]=1B(O)O>C1(C)C=CC=CC=1.C(=O)([O-])[O-].[Na+].[Na+].C(OCC)(=O)C.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>[CH3:9][O:8][C:6]1[C:5]([OH:10])=[C:4]([CH3:11])[N:3]=[C:2]([C:15]2[C:14]([O:13][CH3:12])=[CH:19][C:18]([CH3:20])=[CH:17][C:16]=2[CH3:21])[N:7]=1

参加物

7

反応物 2

HCID 21931520(2-Methoxy-4,6-dimethylphenyl)boronic acidHCID 22490069HCID 22490069、化合物

生成物 1

HCID 22490043HCID 22490043、化合物

試薬・触媒・溶媒 4

HCID 178418397HCID 178418397、化合物触媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒HCID 10340Sodium Carbonate溶媒

反応条件

温度
95 °C

実験手順

A mixture of 2-chloro-4-methoxy-6-methylpyrimidin-5-ol (348 mg, 2.0 mmol), 2-methoxy-4,6-dimethylphenylboronic acid (540 mg, 3.0 mmol), tetrakis(triphenylphosphine)palladium (0) (115 mg, 5 mol %) in toluene (12 mL) and sodium carbonate (1M in water, 4 mL) is heated at 95° C. (oil bath temperature) in a pressure tube for 14 hours. The reaction is cooled to room temperature, diluted with ethyl acetate, washed with NaOH (2M) and then brine (2×50 mL). The solvents are dried (sodium sulfate) and removed under reduced pressure. Flash chromatography of the crude product (50% ethyl acetate in hexanes) yields 4-methoxy-2-(6-methoxy-2,4-dimethylphenyl)-6-methylpyrimidin-5-ol as a white solid.

後処理

  1. temperatureThe reaction is cooled to room temperature
  2. washwashed with NaOH (2M)
  3. dry with materialThe solvents are dried (sodium sulfate)
  4. customremoved under reduced pressure

出典と根拠

ORDレコード
ord-d8fc84db2620473d8f40827898f1aadb
出典データセット
uspto-grants-2005_05
特許番号
US06887875B2

反応ノート

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