Ethanol → Methyl 5-(4-chlorophenyl)-1,4-dimethyl-3-(4-sulfamoylphenyl)-1H-pyrrole-2-carboxylate

HRID 1518716노트

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HRID 1518716 반응식
[CH3:1][O:2][C:3]([C:5]1[N:6]([CH3:19])[C:7]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)=[C:8]([CH3:11])[C:9]=1Br)=[O:4].C(O)C.[NH2:23][S:24]([C:27]1[CH:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1)(=[O:26])=[O:25].C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.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>[CH3:1][O:2][C:3]([C:5]1[N:6]([CH3:19])[C:7]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)=[C:8]([CH3:11])[C:9]=1[C:30]1[CH:31]=[CH:32][C:27]([S:24](=[O:26])(=[O:25])[NH2:23])=[CH:28][CH:29]=1)=[O:4]

참가 물질

7

반응물 4

HCID 702EthanolHCID 11430Potassium CarbonateHCID 223919774-(Aminosulphonyl)benzeneboronic acidHCID 70912710methyl 3-bromo-5-(4-chlorophenyl)-1,4-dimethyl-1H-pyrrole-2-carboxylate

생성물 1

HCID 70912780Methyl 5-(4-chlorophenyl)-1,4-dimethyl-3-(4-sulfamoylphenyl)-1H-pyrrole-2-carboxylate수율 69.6%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 1140Toluene용매

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온도
25 °C

실험 절차

To the solution of methyl-3-bromo-5-(4-chlorophenyl)-1,4-dimethyl-1H-pyrrole-2-carboxylate (compound 49β, 2.0 g, 5.84 mmol) in a mixture of toluene:ethanol (15:40 ml) was added 4-aminosulfonylbenzene boronic acid (1.41 g, 7.01 mmol) and potassium carbonate (2.42 g, 17.52 mmol) at 25° C. in a sealed tube and a nitrogen gas was bubbled through the resulting mixture for 15 minutes. To the reaction mixture was then added tetrakis(triphenylphosphine)palladium(0) (0.349 g, 0.29 mmol) under nitrogen and reaction mixture was heated at about 95 to about 100° C. for 15 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 ethanol (100 ml) and ethyl acetate (50 ml). The combined filtrate was concentrated under reduced pressure to obtain a crude product, which was then purified by column chromatography over silica gel (100-200 mesh) using 40% ethyl acetate in hexanes as an eluent to obtain the title compound (1.7 g, 69.6%).

후처리

  1. customa nitrogen gas was bubbled through the resulting mixture for 15 minutes
  2. temperaturewas heated at about 95 to about 100° C. for 15 hr
  3. filtrationfiltered through celite
  4. washThe celite cake was washed with ethanol (100 ml) and ethyl acetate (50 ml)
  5. concentrationThe combined filtrate was concentrated under reduced pressure
  6. customto obtain a crude product, which
  7. customwas then purified by column chromatography over silica gel (100-200 mesh)

출처 및 근거

ORD 기록
ord-c4cdbb7a14e64804af1d455248b15b64
출처 데이터셋
uspto-grants-2015_07
특허 번호
US09072731B2

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