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tert-Butyl piperazine-1-carboxylate → (3-((4-(Tert-butoxycarbonyl)piperazin-1-yl)methyl)phenyl)boronic acid

HRID 657364
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반응식

HRID 657364 반응식
[CH:1]([C:3]1[CH:4]=[C:5]([B:9]([OH:11])[OH:10])[CH:6]=[CH:7][CH:8]=1)=O.[N:12]1([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl.CCOC(C)=O>[CH3:24][C:21]([O:20][C:18]([N:12]1[CH2:17][CH2:16][N:15]([CH2:1][C:3]2[CH:4]=[C:5]([B:9]([OH:11])[OH:10])[CH:6]=[CH:7][CH:8]=2)[CH2:14][CH2:13]1)=[O:19])([CH3:22])[CH3:23]
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참가 물질

6

반응물 3

HCID 143452tert-Butyl piperazine-1-carboxylateHCID 27343563-Formylphenylboronic acidHCID 5049666Sodium triacetoxyborohydride

생성물 1

HCID 42609723(3-((4-(Tert-butoxycarbonyl)piperazin-1-yl)methyl)phenyl)boronic acid

시약·촉매·용매 2

HCID 6344Dichloromethane용매
HCID 8857
Ethyl Acetate
용매

실험 절차

To the solution of (3-formylphenyl)boronic acid (3.0 g, 20.0 mmol) in DCM (100 mL) was added 1,1-dimethylethyl 1-piperazinecarboxylate (3.91 g, 21.0 mmol), and NaBH(OAc)3 (6.36 g, 30.0 mmol), and the mixture stirred at room temperature for 17 h. The organic layer was diluted with EtOAc (100 mL), washed with H2O (30 mL), dried over Na2SO4, filtered and concentrated to afford 7.72 g (quantitative) of the title compound. LC-MS m/z 321 (M+H)+.

후처리

  1. washwashed with H2O (30 mL)
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-f11cf285f11b470b9097cf56a5f1d736
출처 데이터셋
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08071588B2

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