Benzene, 1-iodo-2-(trifluoromethyl)- → 5-(2-Chloro-6-fluorophenyl)-2-(4-{[2-(trifluoromethyl)phenyl]ethynyl}phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one

HRID 59420

反応式

HRID 59420 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[NH:10][C:11](=[O:22])[N:12]([C:14]2[CH:19]=[CH:18][C:17]([C:20]#[CH:21])=[CH:16][CH:15]=2)[N:13]=1.I[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1[C:30]([F:33])([F:32])[F:31].CCCC[N+](CCCC)(CCCC)CCCC.[F-]>CS(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[NH:10][C:11](=[O:22])[N:12]([C:14]2[CH:19]=[CH:18][C:17]([C:20]#[C:21][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]([F:33])([F:32])[F:31])=[CH:16][CH:15]=2)[N:13]=1

参加物

6

反応物 3

HCID 67957Benzene, 1-iodo-2-(trifluoromethyl)-HCID 2724141Tetrabutylammonium FluorideHCID 1366448585-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one

生成物 1

HCID 1364924775-(2-Chloro-6-fluorophenyl)-2-(4-{[2-(trifluoromethyl)phenyl]ethynyl}phenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one収率 27.4%

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 679Dimethyl Sulfoxide溶媒

反応条件

温度
110 °C

実験手順

To a solution of 5-(2-chloro-6-fluorophenyl)-2-(4-ethynylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (Intermediate-2, 0.100 g, 0.319 mmol) in DMSO was added 1-iodo-2-(trifluoromethyl)benzene (0.13 g, 0.479 mmol), TBAF (0.301 g, 0.958 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.050 g, 0.071 mmol). The reaction mass was stirred at 110° C. for 5-6 h. The reaction mass was quenched in water and extracted with DCM and concentrated. The obtained product was purified with column chromatography on silica gel eluting with 2.0% EA:DCM to afford 0.040 g of the desired product. 1H NMR (300 MHz, DMSO do): δ 7.50 (t, J=9.3 Hz, 1H), 7.57-7.73 (m, 6H), 7.82 (br s, 2H), 8.02 (d, J=8.7 Hz, 2H), 12.72 (br s, 1H). MS (m/z): 458.26 (M+H)+.

後処理

  1. customThe reaction mass was quenched in water
  2. extractionextracted with DCM
  3. concentrationconcentrated
  4. customThe obtained product was purified with column chromatography on silica gel eluting with 2.0% EA

出典と根拠

ORDレコード
ord-770662b5674f4938871057adfd1616d4
出典データセット
uspto-grants-2016_09
特許番号
US09439890B2

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