Potassium Phosphate, Tribasic → 1,1-Dimethylethyl {[3'-({[(1,1-dimethylethyl)(dimethyl)silyl]oxy}methyl)-2-(methyloxy)-3-biphenylyl]methyl}carbamate

HRID 564482노트

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HRID 564482 반응식
Br[C:2]1[C:3]([O:17][CH3:18])=[C:4]([CH2:8][NH:9][C:10](=[O:16])[O:11][C:12]([CH3:15])([CH3:14])[CH3:13])[CH:5]=[CH:6][CH:7]=1.C1(P(C2CCCCC2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2OC)CCCCC1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].[CH3:62][C:63]([Si:66]([CH3:79])([CH3:78])[O:67][CH2:68][C:69]1[CH:70]=[C:71](B(O)O)[CH:72]=[CH:73][CH:74]=1)([CH3:65])[CH3:64]>O1CCOCC1.CC([O-])=O.CC([O-])=O.[Pd+2]>[CH3:65][C:63]([Si:66]([CH3:79])([CH3:78])[O:67][CH2:68][C:69]1[CH:70]=[C:71]([C:2]2[CH:7]=[CH:6][CH:5]=[C:4]([CH2:8][NH:9][C:10](=[O:16])[O:11][C:12]([CH3:15])([CH3:14])[CH3:13])[C:3]=2[O:17][CH3:18])[CH:72]=[CH:73][CH:74]=1)([CH3:62])[CH3:64]

참가 물질

7

반응물 4

HCID 62657Potassium Phosphate, TribasicHCID 16079156(1R)-Dicyclohexyl(2'-methoxy-[1,1'-binaphthalen]-2-yl)phosphaneHCID 57813344tert-butyl N-[(3-bromo-2-methoxyphenyl)methyl]carbamateHCID 57813382[3-({[(1,1-Dimethylethyl)(dimethyl)silyl]oxy}methyl)phenyl]boronic acid

생성물 1

HCID 578135081,1-Dimethylethyl {[3'-({[(1,1-dimethylethyl)(dimethyl)silyl]oxy}methyl)-2-(methyloxy)-3-biphenylyl]methyl}carbamate수율 72%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 312751,4-Dioxane용매

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온도
80 °C

실험 절차

1,1-Dimethylethyl {[3-bromo-2-(methyloxy)phenyl]methyl}carbamate (5.2 g, 16.4 mmol), Pd(OAc)2 (110.4 mg, 0.49 mmol), dicyclohexyl[2′-(methyloxy)-1,1′-binaphthalen-2-yl]phosphane (317.2 mg, 0.66 mmol) and K3PO4 (4.2 g, 19.7 mmol) were dissolved in dioxane (60 mL). The mixture was heated at 80° C. for 30 min, and then [3-({[(1,1-dimethylethyl)(dimethyl)silyl]oxy}methyl)phenyl]boronic acid (5.2 g, 19.7 mmol) was added. The mixture reaction was stirred at reflux overnight. The solvent was removed under reduced pressure, then diluted with CH2Cl2 (100 mL). The organic layer was washed with water (30 mL), brine (30 mL), and dried over Na2SO4. The product 1,1-dimethylethyl {[3′-({[(1,1-dimethylethyl)(dimethyl)silyl]oxy}methyl)-2-(methyloxy)-3-biphenylyl]-methyl}carbamate (5.0 g) was purified by flash column chromatography (PE:EA=15:1). (Yield: 72%). 1H NMR (400 MHz, CDCl3): δ 0.11 (s, 6 H), 0.94 (s, 9 H), 1.46 (s, 9 H), 3.37 (s, 3 H), 4.40 (d, J=6 Hz, 2 H), 4.80 (s, 2 H), 5.04 (s, 1 H), 7.12-7.51 (m, 7 H); 13C NMR (100 MHz, CDCl3): δ −5.2, 18.4, 25.9, 28.4, 40.3, 60.4, 65.0, 124.2, 125.0, 126.6, 127.5, 128.3, 128.4, 130.6, 132.3, 134.8, 138.2, 141.5, 155.8; HPLC: retention time: 4.348 min; purity: 99.9%; MS: m/z 453 (M+), 344 (M+−TBS).

후처리

  1. customThe mixture reaction
  2. temperatureat reflux overnight
  3. customThe solvent was removed under reduced pressure
  4. additiondiluted with CH2Cl2 (100 mL)
  5. washThe organic layer was washed with water (30 mL), brine (30 mL)
  6. dry with materialdried over Na2SO4
  7. customThe product 1,1-dimethylethyl {[3′-({[(1,1-dimethylethyl)(dimethyl)silyl]oxy}methyl)-2-(methyloxy)-3-biphenylyl]-methyl}carbamate (5.0 g) was purified by flash column chromatography (PE:EA=15:1)

출처 및 근거

ORD 기록
ord-4bc5530b6f434777a9343a750e1644bb
출처 데이터셋
uspto-grants-2011_11
특허 번호
US08067408B2

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