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Potassium Phosphate, Tribasic → [4'-(1-{4-[3-(t-butyl-dimethyl-silanyloxy)-4,4-dimethyl-pentyl]-3-methyl-phenyl}-1-ethyl-propyl)-3-chloro-2'-methyl-biphenyl-4-yl]-acetic Acid Methyl Ester

HRID 546915
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HRID 546915 반응식
[C:1]([Si:5]([O:8][CH:9]([CH2:14][CH2:15][C:16]1[CH:21]=[CH:20][C:19]([C:22]([CH2:41][CH3:42])([C:25]2[CH:30]=[CH:29][C:28](B3OC(C)(C)C(C)(C)O3)=[C:27]([CH3:40])[CH:26]=2)[CH2:23][CH3:24])=[CH:18][C:17]=1[CH3:43])[C:10]([CH3:13])([CH3:12])[CH3:11])([CH3:7])[CH3:6])([CH3:4])([CH3:3])[CH3:2].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].[CH3:81][O:82][C:83](=[O:93])[CH2:84][C:85]1[CH:90]=[CH:89][C:88](Cl)=[CH:87][C:86]=1[Cl:92]>C(OCC)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:81][O:82][C:83](=[O:93])[CH2:84][C:85]1[CH:90]=[CH:89][C:88]([C:28]2[CH:29]=[CH:30][C:25]([C:22]([C:19]3[CH:20]=[CH:21][C:16]([CH2:15][CH2:14][CH:9]([O:8][Si:5]([C:1]([CH3:4])([CH3:3])[CH3:2])([CH3:6])[CH3:7])[C:10]([CH3:13])([CH3:12])[CH3:11])=[C:17]([CH3:43])[CH:18]=3)([CH2:23][CH3:24])[CH2:41][CH3:42])=[CH:26][C:27]=2[CH3:40])=[CH:87][C:86]=1[Cl:92]
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반응물 4

HCID 62657Potassium Phosphate, TribasicHCID 2734106Methyl 2,4-dichlorobenzeneacetateHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 577089262-[4-(1-{4-[3-(t-Butyldimethyl-silanyloxy)-4,4-dimethyl-pentyl]-3-methyl-phenyl}-1-ethyl-propyl)-2-methyl-phenyl]-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane

생성물 1

HCID 57709101
[4'-(1-{4-[3-(t-butyl-dimethyl-silanyloxy)-4,4-dimethyl-pentyl]-3-methyl-phenyl}-1-ethyl-propyl)-3-chloro-2'-methyl-biphenyl-4-yl]-acetic Acid Methyl Ester
수율 17.5%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 3283Diethyl Ether용매

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온도
100 °C

실험 절차

Degassed toluene (0.13 mL) and water (0.013 mL) were added to t-butyl-(1-{2-[4-(1-ethyl-1-{4-[4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl]-3-methyl-phenyl}-propyl)-2-methyl-phenyl]-ethyl}-2,2-dimethyl-propoxy)dimethylsilane (Example 23-(1); 15.7 mg, 0.0259 mmol), palladium (II) acetate (0.8 mg, 0.004 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxy-1,1′-biphenyl (3 mg, 0.007 mmol) and potassium phosphate (20.0 mg, 0.0942 mmol). After replacement with nitrogen, (2,4-dichloro-phenyl)acetic acid methyl ester (Example 41; 17 mg, 0.078 mmol) was added. After replacement with nitrogen, the mixture was heated while stirring at an external temperature of 96 to 104° C. for 30 minutes. The reaction mixture was diluted with diethyl ether and filtered through cotton plug, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate=50/1) to give the title compound (3 mg, 17%).

후처리

  1. customDegassed toluene (0.13 mL) and water (0.013 mL)
  2. temperatureAfter replacement with nitrogen, the mixture was heated
  3. filtrationfiltered through cotton plug
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe residue was purified by silica gel chromatography (hexane/ethyl acetate=50/1)

출처 및 근거

ORD 기록
ord-7463ae4f34b94a578c4127c0da4f4c2e
출처 데이터셋
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07935688B2

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