Potassium Carbonate → HCID 68285619、化合物

HRID 1053301ノート

反応式

HRID 1053301 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5](B(O)O)=[CH:4][CH:3]=1.[C:11](=O)([O-])[O-].[K+].[K+].Br[C:18]1[S:22][C:21]([C:23]([O:25][CH3:26])=[O:24])=[C:20]([C:27]2[CH:32]=[CH:31][C:30]([S:33](=[O:36])(=[O:35])[NH2:34])=[C:29]([CH3:37])[CH:28]=2)[C:19]=1[CH3:38]>C1(C)C=CC=CC=1.C(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>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:18]2[S:22][C:21]([C:23]([O:25][CH2:26][CH3:11])=[O:24])=[C:20]([C:27]3[CH:32]=[CH:31][C:30]([S:33](=[O:36])(=[O:35])[NH2:34])=[C:29]([CH3:37])[CH:28]=3)[C:19]=2[CH3:38])=[CH:4][CH:3]=1

参加物

7

反応物 3

HCID 11430Potassium CarbonateHCID 742994-Chlorophenylboronic acidHCID 68285248HCID 68285248、化合物

生成物 1

HCID 68285619HCID 68285619、化合物収率 76.8%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 702Ethanol溶媒HCID 1140Toluene溶媒

反応条件

温度
25 °C

実験手順

(4-chlorophenyl)boronic acid [0.29 g, 1.85 mmol] and potassium carbonate (0.43 g, 3.09 mmol) were added to a solution of methyl 5-bromo-4-methyl-3-(3-methyl-4-sulfamoylphenyl)thiophene-2-carboxylate (41b, 0.62 g, 1.54 mmol) in a mixture of 5 ml of toluene and 20 ml ethanol at 25° C. A nitrogen gas was bubbled through reaction mixture for 15 minutes. To the reaction mixture was then added tetrakis(triphenylphosphine)palladium(0) (0.09 g, 0.08 mmol) under nitrogen atmosphere and the reaction mixture was heated at a temperature between about 95° C. to 100° C. for 3 hr under stirring. The progress of the reaction was monitored by TLC. The reaction mixture was then cooled to 25° C. and filtered through celite. The celite cake was washed with ethyl acetate (20 ml). The combined filtrate was then concentrated under reduced pressure to obtain a crude product, which was then purified by flash column chromatography using 30% ethyl acetate in hexanes as an eluent to obtain the title compound (0.53 g, 76.8%).

後処理

  1. customA nitrogen gas was bubbled through reaction mixture for 15 minutes
  2. filtrationfiltered through celite
  3. washThe celite cake was washed with ethyl acetate (20 ml)
  4. concentrationThe combined filtrate was then concentrated under reduced pressure
  5. customto obtain a crude product, which
  6. customwas then purified by flash column chromatography

出典と根拠

ORDレコード
ord-fdc4b6f5215d4167a2b4ff3fb636563d
出典データセット
uspto-grants-2016_07
特許番号
US09393247B2

反応ノート

読み込み中…