1-Bromonaphthalene → 1-Cyclopropylnaphthalene

HRID 38746

반응식

HRID 38746 반응식
[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

참가 물질

5

반응물 2

HCID 70011-BromonaphthaleneHCID 178418630HCID 178418630, 화합물

생성물 1

HCID 146686931-Cyclopropylnaphthalene수율 76%

시약·촉매·용매 2

HCID 178418745HCID 178418745, 화합물촉매HCID 8028Tetrahydrofuran용매

반응 조건

온도
0 °C

실험 절차

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%).

후처리

  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

출처 및 근거

ORD 기록
ord-0598a07fe5864d62852854e299c3d520
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08524754B2

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