2-Bromonaphthalene → 4-(Naphthalen-2-yl)phenol

HRID 884719

반응식

HRID 884719 반응식
Br[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH:3]=1.[OH:12][C:13]1[CH:18]=[CH:17][C:16](B(O)O)=[CH:15][CH:14]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C1(P(C2CCCCC2)C2CCCCC2)CCCCC1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O.C1(C)C=CC=CC=1>[CH:3]1[C:4]2[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=2)[CH:10]=[CH:11][C:2]=1[C:16]1[CH:17]=[CH:18][C:13]([OH:12])=[CH:14][CH:15]=1

참가 물질

8

반응물 4

HCID 113722-BromonaphthaleneHCID 62657Potassium Phosphate, TribasicHCID 75806TricyclohexylphosphineHCID 27343604-Hydroxyphenylboronic acid

생성물 1

HCID 2368684-(Naphthalen-2-yl)phenol수율 2.5%

시약·촉매·용매 3

HCID 167845palladium(II) acetate촉매HCID 962Water용매2회HCID 1140Toluene용매

반응 조건

온도
100 °C

실험 절차

To a mixture of 2-bromonaphthalene (4.0 g, 19.32 mmol), 4-hydroxyphenylboronic acid (2.9 g, 21.24 mmol), potassium phosphate (14.35 g, 67.61 mmol), tricyclohexyl phosphine (542 mg, 1.93 mmol), toluene (80 mL) and water (4 mL) was added palladium acetate (217 mg, 0.965 mmol) under N2. The reaction mixture was heated to 100° C. for 24 h and then cooled to rt. Water was added and the mixture was extracted with EtOAc. The organic layer was separated, washed with water, brine, dried and concentrated to give crude product. Purification by column chromatography using 10% EtOAc in hexane afforded 105 mg of 4-naphthalen-2-yl-phenol. MS (ES) m/z: 220.07 (M) and 219.04 (M−1).

후처리

  1. temperaturecooled to rt
  2. extractionthe mixture was extracted with EtOAc
  3. customThe organic layer was separated
  4. washwashed with water, brine
  5. customdried
  6. concentrationconcentrated
  7. customto give crude product
  8. customPurification by column chromatography

출처 및 근거

ORD 기록
ord-311807c4357149e9af4c762267da50a1
출처 데이터셋
uspto-grants-2012_08
특허 번호
US08242130B2

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