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Potassium Phosphate, Tribasic → 3-(4-(2-Cyclopropyl-1-oxoisoindolin-5-yl)benzyl)-1-methylimidazoline-2,4-dione

HRID 1891261
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HRID 1891261 반응식
[CH:1]1([N:4]2[CH2:12][C:11]3[C:6](=[CH:7][CH:8]=[C:9](B4OC(C)(C)C(C)(C)O4)[CH:10]=3)[C:5]2=[O:22])[CH2:3][CH2:2]1.Br[C:24]1[CH:38]=[CH:37][C:27]([CH2:28][N:29]2[C:33](=[O:34])[CH2:32][N:31]([CH3:35])[C:30]2=[O:36])=[CH:26][CH:25]=1.C1(P(C2CCCCC2)C2CCCCC2)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.C(Cl)Cl.O>[CH:1]1([N:4]2[CH2:12][C:11]3[C:6](=[CH:7][CH:8]=[C:9]([C:24]4[CH:38]=[CH:37][C:27]([CH2:28][N:29]5[C:33](=[O:34])[CH2:32][N:31]([CH3:35])[C:30]5=[O:36])=[CH:26][CH:25]=4)[CH:10]=3)[C:5]2=[O:22])[CH2:2][CH2:3]1
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참가 물질

8

반응물 4

HCID 62657Potassium Phosphate, TribasicHCID 75806TricyclohexylphosphineHCID 594023502-Cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-oneHCID 606247733-[(4-Bromophenyl)methyl]-1-methylimidazolidine-2,4-dione

생성물 1

HCID 529318563-(4-(2-Cyclopropyl-1-oxoisoindolin-5-yl)benzyl)-1-methylimidazoline-2,4-dione수율 2,280.8%

시약·촉매·용매 3

HCID 962Water용매2회HCID 6344Dichloromethane용매HCID 312751,4-Dioxane용매

실험 절차

2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoindolin-1-one (1A5) (0.08 mmol, 26.4 mg), 3-(4-bromobenzyl)-1-methylimidazolidine-2,4-dione (3D3) (0.08 mmol, 25.0 mg), tris(dibenzylidineacetone)dipalladium (0.004 mmol, 4.12 mg), tricyclohexylphosphine (0.096 mmol, 3.1 mg) and potassium phosphate (0.16 mmol, 39.0 mg) were suspended in dioxane (1 ml) and water (0.5 ml) and heated at 120° C. in the microwave for 20 min. The reaction was diluted with DCM (2 ml) and water (2 ml) then passed through a hydrophobic fritted tube. The organic phase was concentrated and the residue purified on basic HPLC to give 3-(4-(2-cyclopropyl-1-oxoisoindolin-5-yl)benzyl)-1-methylimidazoline-2,4-dione (Example 3a) (685 mg, 55%) 1H NMR (400 MHz, CDCl3) δ 7.87 (d, 1H) 7.64 (d, 1H) 7.57-7.50 (m, 5H) 4.71 (s, 2H) 4.37 (s, 2H) 3.89 (s, 2H) 3.01 (s, 3H) 2.95 (m, 1H) 0.95-0.88 (m, 4H) LCMS m/z (M+H) 376.0.

후처리

  1. customthen passed through a hydrophobic fritted tube
  2. concentrationThe organic phase was concentrated
  3. customthe residue purified on basic HPLC

출처 및 근거

ORD 기록
ord-c494d3ee8ff4460992b26095e9dfa701
출처 데이터셋
uspto-grants-2013_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08507521B2

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