Dimethylformamide → Dimethyl 2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-2,4-dicarboxylate

HRID 404328ノート

反応式

HRID 404328 の反応式
FC(F)(F)S(O[C:7]1[CH:16]=[CH:15][C:10]([C:11]([O:13][CH3:14])=[O:12])=[CH:9][C:8]=1[C:17]([O:19][CH3:20])=[O:18])(=O)=O.CN(C=O)C.[F:28][C:29]1[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][C:30]=1B(O)O.C(=O)([O-])[O-].[K+].[K+]>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>[F:28][C:29]1[CH:34]=[CH:33][C:32]([O:35][CH3:36])=[CH:31][C:30]=1[C:7]1[C:8]([C:17]([O:19][CH3:20])=[O:18])=[CH:9][C:10]([C:11]([O:13][CH3:14])=[O:12])=[CH:15][CH:16]=1

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 41572112-Fluoro-5-methoxyphenylboronic acidHCID 120175464-[[(Trifluoromethyl)sulfonyl]oxy]-1,3-benzenedicarboxylic acid dimethyl ester

生成物 1

HCID 57706522Dimethyl 2'-fluoro-5'-(methyloxy)-1,1'-biphenyl-2,4-dicarboxylate

試薬・触媒・溶媒 2

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

反応条件

温度
90 °C

実験手順

To a stirred solution of dimethyl 4-(trifluoromethylsulfonyloxy)isophthalate T4.1 (39.00 g, 114 mmol) in DMF (228 mL, 114 mmol) at 23° C. was added 2-fluoro-5-methoxyphenylboronic acid (29 g, 171 mmol) (commercially available from Sigma-Aldrich, St. Louis, Mo., USA), and potassium carbonate (47 g, 342 mmol), followed by tetrakis(triphenylphosphine)palladium (9.2 g, 8.0 mmol). The mixture was heated to 90° C. and stirred for 18 hours. The reaction was cooled to room temperature. Water was then added to the reaction, and the resulting mixture was extracted with EtOAc. The combined organic layers were dried over MgSO4, and concentrated. The crude product was purified by silica gel flash chromatography (0-20% EtOAc/hexane) to afford dimethyl 2′-fluoro-5′-(methyloxy)-1,1′-biphenyl-2,4-dicarboxylate T4.2 as a clear oil (32.00 g, 88% yield). MS ESI (pos.) m/e: 319.1 (M+H)+.

後処理

  1. temperatureThe reaction was cooled to room temperature
  2. extractionthe resulting mixture was extracted with EtOAc
  3. dry with materialThe combined organic layers were dried over MgSO4
  4. concentrationconcentrated
  5. customThe crude product was purified by silica gel flash chromatography (0-20% EtOAc/hexane)

出典と根拠

ORDレコード
ord-743fe2b638004d8e937338df8b173670
出典データセット
uspto-grants-2014_06
特許番号
US08748462B2

反応ノート

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