N-bromobutanimide → HCID 14770215、化合物

HRID 2351486ノート

反応式

HRID 2351486 の反応式
[CH3:1][C:2]1[C:3]2[C:15]([CH:16]=[CH:17][CH:18]=1)=[CH:14][C:6]1[C:7]3[CH:13]=[CH:12][CH:11]=[CH:10][C:8]=3[O:9][C:5]=1[CH:4]=2.[Br:19]N1C(=O)CCC1=O>C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1.C(Cl)(Cl)(Cl)Cl>[Br:19][CH2:1][C:2]1[C:3]2[C:15]([CH:16]=[CH:17][CH:18]=1)=[CH:14][C:6]1[C:7]3[CH:13]=[CH:12][CH:11]=[CH:10][C:8]=3[O:9][C:5]=1[CH:4]=2

参加物

5

反応物 2

HCID 67184N-bromobutanimideHCID 14770214HCID 14770214、化合物

生成物 1

HCID 14770215HCID 14770215、化合物収率 101%

試薬・触媒・溶媒 2

HCID 7187Benzoyl Peroxide触媒HCID 5943Carbon Tetrachloride溶媒

実験手順

To a RB flask was added 7-methyl-benzo[b]naphtho-[2,3-d]furan (Cambridge Chemicals, Inc., 16.0 g, 0.07 mol), N-bromosuccinimide (Aldrich 12.8 g, 0.072 mol, recrystallized from H2O and dried under high vacuum overnight), a catalytic amount of benzoyl peroxide (0.01g) and CCl4 (1 L). The mixture was refluxed for 2.5 h, cooled and filtered to remove the succinimide formed in the reaction. The solvent was then removed from the reaction mixture by rotary evaporation. The crude product was purified by flush chromatography on SiO2 using PhCH3 as the eluting solvent. The appropriate fractions were combined and the solvent once again removed by rotary evaporation to give 22.0 g of product. The material (which was one spot by TLC and pure by NMR) was used without further purification.

後処理

  1. temperatureThe mixture was refluxed for 2.5 h
  2. temperaturecooled
  3. filtrationfiltered
  4. customto remove the succinimide
  5. customformed in the reaction
  6. customThe solvent was then removed from the reaction mixture by rotary evaporation
  7. customThe crude product was purified
  8. customby flush chromatography on SiO2
  9. customthe solvent once again removed by rotary evaporation

出典と根拠

ORDレコード
ord-5f8de1aecf464cf0a107c24316686e5f
出典データセット
uspto-grants-1989_10
特許番号
US04873258

反応ノート

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