Sodium Carbonate → Methyl 4'-[(4-hydroxyphenyl)(3,3,5,5-tetramethylcyclohexylidene)methyl]-2-biphenylcarboxylate

HRID 2100208

반응식

HRID 2100208 반응식
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8](=[C:16]2[CH2:21][C:20]([CH3:23])([CH3:22])[CH2:19][C:18]([CH3:25])([CH3:24])[CH2:17]2)[C:9]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][CH:10]=2)=[CH:4][CH:3]=1.[CH3:26][O:27][C:28]([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=1B(O)O)=[O:29].C([O-])([O-])=O.[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.COCCOC>[OH:15][C:12]1[CH:11]=[CH:10][C:9]([C:8](=[C:16]2[CH2:21][C:20]([CH3:22])([CH3:23])[CH2:19][C:18]([CH3:24])([CH3:25])[CH2:17]2)[C:5]2[CH:6]=[CH:7][C:2]([C:31]3[C:30]([C:28]([O:27][CH3:26])=[O:29])=[CH:35][CH:34]=[CH:33][CH:32]=3)=[CH:3][CH:4]=2)=[CH:14][CH:13]=1

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 27734962-(Methoxycarbonyl)benzeneboronic acidHCID 686543984-[(4-Bromophenyl)(3,3,5,5-tetramethylcyclohexylidene)methyl]phenol

생성물 1

HCID 68654495Methyl 4'-[(4-hydroxyphenyl)(3,3,5,5-tetramethylcyclohexylidene)methyl]-2-biphenylcarboxylate수율 68%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매

반응 조건

온도
160 °C

실험 절차

A sealed tube containing 4-[(4-bromophenyl)(3,3,5,5-tetramethylcyclohexylidene)methyl]phenol (14) (0.30 g, 0.75 mmol), (2-methoxycarbonylphenyl)boronic acid (0.29 g, 1.50 mmol), Pd(PPh3)4 (87 mg, 0.08 mmol), 2 M Na2CO3 (4 mL) and DME (4 mL) was heated at 160° C. for 25 minutes. Cooled to room temperature, the mixture was extracted with EtOAc. The EtOAc extracts were combined and washed with water, brine, dried over Na2SO4, filtered, and the filtrate was concentrated to give the crude product as dark brown oil. The crude product was purified by chromatography on a silica gel column eluted with a gradient from hexanes to 20% EtOAc in hexanes to give 0.23 g (68%) of the title compound (248) as off-white solid. mp 177-178° C. 1H NMR (400 MHz, CDCl3): δ 0.96 (s, 6H), 0.97 (s, 6H), 1.32 (s, 2H), 2.03 (s, 4H), 3.57 (s, 3H), 4.60 (s, 1H), 6.78 (d, J=8.5 Hz, 2H), 7.10 (d, J=8.5 Hz, 2H), 7.15-7.25 (m, 4H), 7.36-7.44 (m, 2H), 7.48-7.56 (m, 1H), 7.76-7.82 (m, 1H). LCMS (ESI): m/z 455 (M+H)+, 453 (M−H)−.

후처리

  1. temperatureCooled to room temperature
  2. extractionthe mixture was extracted with EtOAc
  3. washwashed with water, brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationthe filtrate was concentrated
  7. customto give the crude product as dark brown oil
  8. customThe crude product was purified by chromatography on a silica gel column
  9. washeluted with a gradient from hexanes to 20% EtOAc in hexanes

출처 및 근거

ORD 기록
ord-02e7cea3e3744fd3850aaefdefd36efe
출처 데이터셋
uspto-grants-2009_08
특허 번호
US07569601B2

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