2-Bromobenzonitrile → 4-[(2'-Cyanobiphenyl-4-yl)methoxy]-2-ethyl-5,6,7,8-tetrahydroquinoline

HRID 5681

反応式

HRID 5681 の反応式
[CH2:1]([C:3]1[CH:12]=[C:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18](B(O)O)=[CH:17][CH:16]=2)[C:10]2[CH2:9][CH2:8][CH2:7][CH2:6][C:5]=2[N:4]=1)[CH3:2].Br[C:25]1[CH:32]=[CH:31][CH:30]=[CH:29][C:26]=1[C:27]#[N:28]>C1(C)C=CC=CC=1.C(=O)([O-])[O-].[Na+].[Na+].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>[C:27]([C:26]1[CH:29]=[CH:30][CH:31]=[CH:32][C:25]=1[C:18]1[CH:19]=[CH:20][C:15]([CH2:14][O:13][C:11]2[C:10]3[CH2:9][CH2:8][CH2:7][CH2:6][C:5]=3[N:4]=[C:3]([CH2:1][CH3:2])[CH:12]=2)=[CH:16][CH:17]=1)#[N:28]

参加物

6

反応物 2

HCID 162722-BromobenzonitrileHCID 151714224-[(2-Ethyl-5,6,7,8-tetrahydroquinolin-4-yl)oxymethyl]phenylboronic acid

生成物 1

HCID 197964084-[(2'-Cyanobiphenyl-4-yl)methoxy]-2-ethyl-5,6,7,8-tetrahydroquinoline収率 49.4%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 1140Toluene溶媒HCID 10340Sodium Carbonate溶媒

実験手順

Tetrakis(triphenylphosphine)palladium (40 mg) was added to a suspension of 4-[(2-ethyl-5,6,7,8-tetrahydroquinolin-4-yl)oxymethyl]-phenylboronic acid (200 mg) and 2-bromobenzonitrile (106 mg) in toluene (2 ml) ethanol (0.5 ml) and 2M aqueous sodium carbonate (0.58 ml). The mixture was degassed and placed under an atmosphere of argon, then heated under reflux for 12 hours. The resulting solution was cooled to ambient temperature, and dichloromethane (30 ml) and water (10 ml) were added. The organic layer was separated, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by flash chromatography, eluting with ethyl acetate/hexane (3:1 v/v), and the product triturated with ether/hexane to give 4-[(2'-cyanobiphenyl-4-yl)methoxy]-2-ethyl-5,6,7,8-tetrahydroquinoline (106 mg) as a white solid, m.p. 147°-148° C.; NMR (CDCl3): 1.29(t,3H), 1.7-1.95(m,4H), 5.17(s,2H), 6.57(s,1H), 7.4-7.7 (complex m,7 H), 7.78(d,1H); mass spectrum (+ve CI) 369 (M+H)+.

後処理

  1. customThe mixture was degassed
  2. temperatureheated
  3. temperatureunder reflux for 12 hours
  4. additiondichloromethane (30 ml) and water (10 ml) were added
  5. customThe organic layer was separated
  6. dry with materialdried (MgSO4)
  7. customthe solvent removed by evaporation
  8. customThe residue was purified by flash chromatography
  9. washeluting with ethyl acetate/hexane (3:1 v/v)
  10. customthe product triturated with ether/hexane

出典と根拠

ORDレコード
ord-f2e47c7899134a9295da63016e60ddb0
出典データセット
uspto-grants-1993_09
特許番号
US05245035

関連ノート

読み込み中…