Aniline → 2-Phenylfuran

HRID 34284

反応式

HRID 34284 の反応式
N[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[O:8]1[CH:12]=[CH:11][CH:10]=[CH:9]1>>[C:2]1([C:9]2[O:8][CH:12]=[CH:11][CH:10]=2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

3

反応物 2

HCID 6115AnilineHCID 8029Furan

生成物 1

HCID 5193632-Phenylfuran収率 39%

実験手順

A solution of aniline (12.5 g, 0.134M) and i-amylnitrite (27.5 ml, 0.205M) in furan (400 ml) was stirred at 30° C. (bath temperature) for 24 hours under N2. The mixture was then washed with water and saturated NaCl solution, dried over anhydrous Na2SO4 and evaporated. The brown residue was filtered through a short column of neutral alumina (activity grade II) using pentane as an eluent. The fractions were combined and concentrated and the residue distilled in vacuo to give pure 2-phenylfuran (7.65 g, 39% yield), bp 51°-54° C. (1.0 mm). NMR (CDCl3) δ 6.45 ppm (dd, 1H, J=1.5, 3.0 Hz, furan-H4), 6.62 (d, 1H, J=4.0 Hz, furan-H3), 7.2-7.8 (m, 6H, phenyl and furan-H5).

後処理

  1. washThe mixture was then washed with water and saturated NaCl solution
  2. dry with materialdried over anhydrous Na2SO4
  3. customevaporated
  4. filtrationThe brown residue was filtered through a short column of neutral alumina (activity grade II)
  5. concentrationconcentrated
  6. distillationthe residue distilled in vacuo

出典と根拠

ORDレコード
ord-d3e514cb7fa64e4c8fe743b1fa767652
出典データセット
uspto-grants-1988_08
特許番号
US04761413

関連ノート

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