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Dimethylformamide → 2-(3-methyl-2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindole-5-carbonitrile

HRID 331556
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HRID 331556 반응식
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[C:7](=[O:11])[N:6]([C:12]1([CH3:20])[CH2:17][CH2:16][C:15](=[O:18])[NH:14][C:13]1=[O:19])[CH2:5]2.[CH3:21][N:22](C)C=O>[C-]#N.[C-]#N.[Zn+2].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].C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.[Fe+2]>[CH3:20][C:12]1([N:6]2[CH2:5][C:4]3[C:8](=[CH:9][CH:10]=[C:2]([C:21]#[N:22])[CH:3]=3)[C:7]2=[O:11])[CH2:17][CH2:16][C:15](=[O:18])[NH:14][C:13]1=[O:19]
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참가 물질

6

반응물 2

HCID 6228DimethylformamideHCID 690515003-(5-Bromo-1-oxoisoindolin-2-yl)-3-methylpiperidine-2,6-dione

생성물 1

HCID 670233462-(3-methyl-2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindole-5-carbonitrile수율 99%

시약·촉매·용매 3

HCID 11186Zinc cyanide (Zn(CN)2)촉매HCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)
촉매
HCID 9811564Bis(dibenzylideneacetone)palladium촉매

반응 조건

온도
130 °C

실험 절차

A stirred mixture of 3-(5-bromo-1-oxo-1,3-dihydro-isoindol-2-yl)-3-methyl-piperidine-2,6-dione (1.40 g, 4.00 mmol), Zn(CN)2 (0.28 g, 2.40 mmol), Pd2(dba)3 (0.07 g, 0.08 mmol) and dppf (0.09 g, 0.16 mmol) in deoxygenated N,N-dimethylformamide (30 mL) was heated to 130° C. under nitrogen. After 2 h, the solvent was removed in vacuo and the residue was triturated in water (30 mL) then ethyl acetate/hexanes (1:1, 30 mL). The product was isolated by filtration, washed with ethyl acetate/hexanes (1:1) and dried in vacuo providing 2-(3-methyl-2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindole-5-carbonitrile (1.2 g, 99% yield); 1H NMR (DMSO-d6) δ 1.67 (s, 3H), 1.89-1.95 (m, 1H), 2.55-2.81 (m, 3H), 4.73 (d, J=18.2 Hz, 1H), 7.82 (d, J=7.8 Hz, 1H), 7.97 (d, J=7.8 Hz, 1H), 8.17 (s, 1H), 10.93 (s, 1H).

후처리

  1. customthe solvent was removed in vacuo
  2. customthe residue was triturated in water (30 mL)
  3. customThe product was isolated by filtration
  4. washwashed with ethyl acetate/hexanes (1:1)
  5. customdried in vacuo

출처 및 근거

ORD 기록
ord-59d6f97ac2cd4137ac696853ade2ca18
출처 데이터셋
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08877780B2

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