Tri-o-tolylphosphine → 4-(2,4-dimethylthiophen-3-yl)-3-(2-fluoro-4-methoxyphenyl)-1-methyl-1H-pyrazole-5-carbonitrile

HRID 1410171ノート

反応式

HRID 1410171 の反応式
Br[C:2]1[C:3]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][C:11]=2[F:18])=[N:4][N:5]([CH3:9])[C:6]=1[C:7]#[N:8].C([Sn](CCCC)(CCCC)[C:24]1[C:28]([CH3:29])=[CH:27][S:26][C:25]=1[CH3:30])CCC.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].CN(C=O)C>[CH3:30][C:25]1[S:26][CH:27]=[C:28]([CH3:29])[C:24]=1[C:2]1[C:3]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[CH:12][C:11]=2[F:18])=[N:4][N:5]([CH3:9])[C:6]=1[C:7]#[N:8]

参加物

6

反応物 3

HCID 80271Tri-o-tolylphosphineHCID 67120033Tributyl(2,4-dimethylthiophen-3-yl)stannaneHCID 671200524-bromo-3-(2-fluoro-4-methoxyphenyl)-1-methyl-1H-pyrazole-5-carbonitrile

生成物 1

HCID 671200444-(2,4-dimethylthiophen-3-yl)-3-(2-fluoro-4-methoxyphenyl)-1-methyl-1H-pyrazole-5-carbonitrile収率 32%

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
85 °C

実験手順

4-bromo-3-(2-fluoro-4-methoxyphenyl)-1-methyl-1H-pyrazole-5-carbonitrile (49 mg, 0.16 mmol), tributyl(2,4-dimethylthiophen-3-yl)stannane (82.24 mg, 0.20 mmol), Pd2(dba)3 (14.44 mg, 0.02 mmol) and trio-tolylphosphine (9.6 mg, 0.03 mmol) were mixed with 1.5 mL DMF and the mixture was degassed under nitrogen in a vial. The vial was sealed and the reaction was heated at 85° C. over night. Water was added, the mixture was extracted with CH2Cl2 and the organic layer was concentrated. The crude product was purified on silica to give 4-(2,4-dimethylthiophen-3-yl)-3-(2-fluoro-4-methoxyphenyl)-1-methyl-1H-pyrazole-5-carbonitrile (17 mg, 32%).

後処理

  1. customthe mixture was degassed under nitrogen in a vial
  2. customThe vial was sealed
  3. additionWater was added
  4. extractionthe mixture was extracted with CH2Cl2
  5. concentrationthe organic layer was concentrated
  6. customThe crude product was purified on silica

出典と根拠

ORDレコード
ord-d442e8d1950d489f8f597cfc1c626705
出典データセット
uspto-grants-2014_12
特許番号
US08921402B2

反応ノート

読み込み中…