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Binap, (A+-)- → 1-[3-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]-4-(2-methylpyridin-4-yl)piperazine

HRID 2171637
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HRID 2171637 반응식
Br[C:2]1[C:3]([F:17])=[C:4]([CH:14]=[CH:15][CH:16]=1)[CH2:5][O:6][Si:7]([C:10]([CH3:13])([CH3:12])[CH3:11])([CH3:9])[CH3:8].[CH3:18][C:19]1[CH:24]=[C:23]([N:25]2[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]2)[CH:22]=[CH:21][N:20]=1.C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.CC(C)([O-])C.[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(C)C=CC=CC=1>[Si:7]([O:6][CH2:5][C:4]1[C:3]([F:17])=[C:2]([N:28]2[CH2:29][CH2:30][N:25]([C:23]3[CH:22]=[CH:21][N:20]=[C:19]([CH3:18])[CH:24]=3)[CH2:26][CH2:27]2)[CH:16]=[CH:15][CH:14]=1)([C:10]([CH3:13])([CH3:12])[CH3:11])([CH3:9])[CH3:8]
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참가 물질

7

반응물 4

HCID 634876Binap, (A+-)-HCID 167623771-(2-Methylpyridin-4-yl)piperazineHCID 23676156Sodium t-butoxideHCID 86686195((3-Bromo-2-fluorobenzyl)oxy)(tert-butyl)dimethylsilane

생성물 1

HCID 866862101-[3-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]-4-(2-methylpyridin-4-yl)piperazine수율 66.3%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 1140Toluene용매

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온도
80 °C

실험 절차

[(3-Bromo-2-fluorobenzyl)oxy](tert-butyl)dimethylsilane (300 mg) was mixed with toluene (6 ml), and 1-(2-methylpyridin-4-yl)piperazine (200 mg), Pd2(dba)3 (43 mg), BINAP (88 mg), and sodium tert-butoxide (135 mg) were added thereto, followed by stirring at 80° C. for 5 hours. After cooling to room temperature, filtration was carried out by the addition of CHCl3 and Celite, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (EtOAc/hexane/28% aqueous ammonia/MeOH/) to obtain 1-[3-({[tert-butyl(dimethyl)silyl]oxy}methyl)-2-fluorophenyl]-4-(2-methylpyridin-4-yl)piperazine (259 mg).

후처리

  1. additionwere added
  2. temperatureAfter cooling to room temperature
  3. filtrationfiltration
  4. additionwas carried out by the addition of CHCl3 and Celite
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (EtOAc/hexane/28% aqueous ammonia/MeOH/)

출처 및 근거

ORD 기록
ord-b3d7654f340442b78450c1f7f6c5c0d9
출처 데이터셋
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09051283B2

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