Methanesulfonic Acid → 5-Bromobenzo[c]phenanthrene

HRID 2405459ノート

反応式

HRID 2405459 の反応式
[Br:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=2[CH:18]=[CH:19]OC)=[CH:4][CH:3]=1.CS(O)(=O)=O.C(=O)([O-])[O-].[K+].[K+]>ClCCl>[Br:1][C:2]1[C:11]2[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=2[C:5]2[C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[CH:18]=[CH:19][C:4]=2[CH:3]=1

参加物

5

反応物 3

HCID 6395Methanesulfonic AcidHCID 11430Potassium CarbonateHCID 676074951-Bromo-4-[2-(2-methoxyvinyl)phenyl]naphthalene

生成物 1

HCID 106624825-Bromobenzo[c]phenanthrene収率 15%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

A reaction vessel was charged with 180 g of 1-bromo-4-[2-(2-methoxyvinyl)phenyl]naphthalene and 1.0 L of dichloromethane. 25 mL of methanesulfonic acid was added to the mixture at room temperature with stirring. The mixture was stirred at room temperature for 8 hours. After completion of the reaction, 1 L of a 10% potassium carbonate aqueous solution was added to the mixture. After removing the aqueous phase, the organic phase was washed with water and a saturated sodium chloride solution, and dried over magnesium sulfate. After removing magnesium sulfate by filtration, the organic phase was concentrated. The residue was purified by silica gel column chromatography to obtain 24.4 g of the target 5-bromobenzo[c]phenanthrene (yield: 15%).

後処理

  1. stirringThe mixture was stirred at room temperature for 8 hours
  2. additionwas added to the mixture
  3. customAfter removing the aqueous phase
  4. washthe organic phase was washed with water
  5. dry with materiala saturated sodium chloride solution, and dried over magnesium sulfate
  6. customAfter removing magnesium sulfate
  7. filtrationby filtration
  8. concentrationthe organic phase was concentrated
  9. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-ff606c0e99c74b8a8c46bb0b36d49424
出典データセット
uspto-grants-2014_08
特許番号
US08803420B2

反応ノート

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