1-Bromonaphthalene → 1-Cyclopropylnaphthalene

HRID 38746

反応式

HRID 38746 の反応式
[CH:1]1([Mg]Br)[CH2:3][CH2:2]1.Br[C:7]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH:10]=[CH:9][CH:8]=1>O1CCCC1.Cl[Ni]1(Cl)[P](C2C=CC=CC=2)(C2C=CC=CC=2)CCC[P]1(C1C=CC=CC=1)C1C=CC=CC=1>[CH:1]1([C:15]2[C:16]3[C:11](=[CH:10][CH:9]=[CH:8][CH:7]=3)[CH:12]=[CH:13][CH:14]=2)[CH2:3][CH2:2]1

参加物

5

反応物 2

HCID 70011-BromonaphthaleneHCID 178418630HCID 178418630、化合物

生成物 1

HCID 146686931-Cyclopropylnaphthalene収率 76%

試薬・触媒・溶媒 2

HCID 178418745HCID 178418745、化合物触媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

Cyclopropylmagnesium bromide (150 mL, 0.5M in tetrahydrofuran) was slowly added to a solution of 1-bromonaphthalene (10 g, 50 mmol) and [1,3-bis(diphenylphosphino)propane]dichloro nickel (II) in tetrahydrofuran (10 mL) stirred at 0° C., and the reaction mixture stirred at room temperature for 16 hours. The solvent was removed under reduced pressure and ethyl acetate and aqueous ammonium chloride were added. After extraction, the organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography to yield 1-cyclopropylnaphthalene (6.4 g, 76%).

後処理

  1. stirringthe reaction mixture stirred at room temperature for 16 hours
  2. customThe solvent was removed under reduced pressure and ethyl acetate and aqueous ammonium chloride
  3. additionwere added
  4. extractionAfter extraction
  5. dry with materialthe organic layer was dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel chromatography

出典と根拠

ORDレコード
ord-0598a07fe5864d62852854e299c3d520
出典データセット
uspto-grants-2013_09
特許番号
US08524754B2

関連ノート

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