Fluretofene → 4'-Ethenyl-2-fluoro-1,1'-biphenyl

HRID 1283634ノート

反応式

HRID 1283634 の反応式
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=2[F:15])=[CH:5][CH:4]=1)#[CH:2].[H][H]>[Pd].N1C=CC=CC=1>[F:15][C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=1[C:6]1[CH:5]=[CH:4][C:3]([CH:1]=[CH2:2])=[CH:8][CH:7]=1

参加物

5

反応物 2

HCID 42040FluretofeneHCID 178418361HCID 178418361、化合物

生成物 1

HCID 194261784'-Ethenyl-2-fluoro-1,1'-biphenyl

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 1049Pyridine溶媒

実験手順

1-Ethynyl-4-(2-fluorophenyl)benzene, 29.6 g., was reduced in a Parr Instrument Company Series 3910 Low-Pressure Shaker-Type Apparatus, using 450 ml. of pyridine, and 0.3 g. of five percent palladium on barium sulfate; reduction was carried out at room temperature for 30 minutes and at an initial hydrogen pressure of 30 psig. The reaction mixture was filtered and the filtrate was evaporated in vacuo. The residue was vacuum distilled to give 20.5 g. of solid which was recrystallized from methanol to give 4-(2 -fluorophenyl)-1-vinylbenzene, mp 38°. The material contained traces of pyridine and 1-ethyl-4-(2-fluorophenyl)benzene, as shown by nuclear magnetic resonance analysis. The following elemental analysis was obtained:

後処理

  1. filtrationThe reaction mixture was filtered
  2. customthe filtrate was evaporated in vacuo
  3. distillationdistilled
  4. customto give 20.5 g
  5. customof solid which was recrystallized from methanol

出典と根拠

ORDレコード
ord-90923561189c4f22a426f7f44cfbbb1d
出典データセット
uspto-grants-1976_08
特許番号
US03975543

反応ノート

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