Diethyl Malonate → HCID 70983315, 화합물

HRID 338901

반응식

HRID 338901 반응식
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([CH3:12])[CH:8]=[CH:7]2.C([O-])([O-])=O.[Cs+].[Cs+].[C:19]([O:27][CH2:28][CH3:29])(=[O:26])[CH2:20][C:21]([O:23][CH2:24][CH3:25])=[O:22].C(OCC)(=O)C>O1CCOCC1.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C.O>[CH3:12][C:9]1[CH:8]=[CH:7][C:6]2[C:11](=[C:2]([CH:20]([C:21]([O:23][CH2:24][CH3:25])=[O:22])[C:19]([O:27][CH2:28][CH3:29])=[O:26])[CH:3]=[CH:4][CH:5]=2)[N:10]=1

참가 물질

8

반응물 4

HCID 7761Diethyl MalonateHCID 8857Ethyl AcetateHCID 10796Cesium carbonateHCID 47150308-Bromo-2-methylquinoline

생성물 1

HCID 70983315HCID 70983315, 화합물수율 82.54%

시약·촉매·용매 3

HCID 178418851HCID 178418851, 화합물촉매HCID 962Water용매HCID 312751,4-Dioxane용매

실험 절차

A solution of 8-bromo-2-methylquinoline (2.00 g, 9.01 mmol), Pd(PtBu3)2 (0.23 g, 0.45 mmol), Cs2CO3 (11.74 g, 36.02 mmol) and diethyl malonate (2.73 mL, 18.01 mmol) in dioxane (25 mL) was heated at 118° C. in a sealed tube for 1 hour. After cooling to ambient temperature, ethyl acetate (30 mL) and water (15 mL) were added. The organic layer was separated, washed with brine, dried (sodium sulfate), filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (7:1 hexane/ethyl acetate) to give diethyl 2-(2-methylquinolin-8-yl)malonate (2.24 g, 82.54%) as an oil.

후처리

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried (sodium sulfate)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by flash chromatography on silica gel (7:1 hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-860037163f144b3dbd39da5485ccfc21
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08889704B2

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