Cesium carbonate → (+/-)-2'-(1-Cyano-2,2-dipyridin-3-ylethyl)-1,1'-biphenyl-3-carbonitrile

HRID 1686080ノート

反応式

HRID 1686080 の反応式
Br[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH:8]([CH:11]([C:18]1[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=1)[C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)[C:9]#[N:10].[C:24]([C:26]1[CH:27]=[C:28](B(O)O)[CH:29]=[CH:30][CH:31]=1)#[N:25].C(=O)([O-])[O-].[Cs+].[Cs+]>C1COCC1.O>[C:9]([CH:8]([C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[C:30]1[CH:29]=[CH:28][CH:27]=[C:26]([C:24]#[N:25])[CH:31]=1)[CH:11]([C:18]1[CH:19]=[N:20][CH:21]=[CH:22][CH:23]=1)[C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)#[N:10]

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 27343253-Cyanophenylboronic acidHCID 672655872-(2-Bromophenyl)-3,3-dipyridin-3-ylpropanenitrile

生成物 1

HCID 57867552(+/-)-2'-(1-Cyano-2,2-dipyridin-3-ylethyl)-1,1'-biphenyl-3-carbonitrile

試薬・触媒・溶媒 2

HCID 962Water溶媒2 回HCID 8028Tetrahydrofuran溶媒

反応条件

温度
160 °C

実験手順

A mixture of 2-(2-bromophenyl)-3,3-dipyridin-3-ylpropanenitrile (0.050 g, 0.137 mmol), 3-cyanophenylboronic acid (0.030 g, 0.206 mmol), cesium carbonate (0.045 g, 0.137 mmol) and Pd(dppf)2 (0.100 g, 0.137 mmol) in THF (0.75 mL) and water (0.75 mL) at −78° C. was heated to 160° C. in microwave for 15 min. The reaction was diluted with water and extracted with CH2Cl2. The combined organic layer was dried, filtered, and concentrated. The residue was purified by silica gel chromatography (0-5% MeOH in CH2Cl2) to give (±)-2′-(1-cyano-2,2-dipyridin-3-ylethyl)-1,1′-biphenyl-3-carbonitrile. 1H-NMR (500 MHz, CDCl3) δ 8.57 (d, 1H, J=3.9), 8.45 (d, 1H, J=4.2), 8.42 (s, 1H), 7.88 (s, 1H), 7.71 (m, 1H), 7.66-7.56 (m, 3H), 7.51 (td, 1H, J=7.5, 1.2), 7.41 (td, 1H, J=7.6, 1.3), 7.34-7.32 (m, 2H), 7.18-7.07 (m, 3H), 7.00 (d, 1H, J=7.8), 4.57 (d, 1H, J=10.0), 4.33 (d, 1H, J=9.8). LRMS m/z (M+H) Calcd: 387.1604, found: 387.1592.

後処理

  1. extractionextracted with CH2Cl2
  2. customThe combined organic layer was dried
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel chromatography (0-5% MeOH in CH2Cl2)

出典と根拠

ORDレコード
ord-b1118cc6bec9424fbfe6b561c645db56
出典データセット
uspto-grants-2012_04
特許番号
US08148535B2

反応ノート

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