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Dimethylformamide → Tert-butyl 4-(5-cyano-3-methylpyridin-2-yl)piperazine-1-carboxylate

HRID 1444119
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HRID 1444119 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:19]([CH3:20])=[CH:18][C:17](Br)=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:22][N:23](C=O)C>[C-]#N.[C-]#N.[Zn+2].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>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:19]([CH3:20])=[CH:18][C:17]([C:22]#[N:23])=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
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참가 물질

5

반응물 2

HCID 6228DimethylformamideHCID 46739269tert-Butyl 4-(5-bromo-3-methylpyridin-2-yl)piperazine-1-carboxylate

생성물 1

HCID 66838837Tert-butyl 4-(5-cyano-3-methylpyridin-2-yl)piperazine-1-carboxylate

시약·촉매·용매 2

HCID 11186Zinc cyanide (Zn(CN)2)촉매HCID 178418397HCID 178418397, 화합물촉매

실험 절차

Heat a solution of 4-(5-bromo-3-methyl-pyridin-2-yl)-piperazine-1-carboxylic acid tert-butyl ester (5.0 g, 14.0 mmol), Zn(CN)2 (989 mg, 8.4 mmol) and Pd(PPh3)4 (970 mg, 0.84 mmol), in dry DMF (50 mL) at 80° C. for 16 h under nitrogen in a sealed tube. Partition the reaction mixture between water and EtOAc. Wash the EtOAc layer with water (1×) and brine (1×), dry (Na2SO4) and concentrate under reduced pressure to give the title compound, and use immediately for the next reaction.

후처리

  1. customPartition the reaction mixture between water and EtOAc
  2. washWash the EtOAc layer with water (1×) and brine (1×)
  3. dry with materialdry (Na2SO4)
  4. concentrationconcentrate under reduced pressure

출처 및 근거

ORD 기록
ord-1c5d4e92ab6d43639bbd497abb5f5664
출처 데이터셋
uspto-grants-2010_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07662830B2

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