Sodium Carbonate → (2,3-Dihydrobenzo[1,4]oxazin-4-yl)[3-(4-fluoro-2-(trifluoromethyl)phenyl)-2,5-dihydropyrrol-1-yl]methanone

HRID 551826

반응식

HRID 551826 반응식
[O:1]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[N:4]([C:11]([N:13]2[CH2:17][CH:16]=[C:15](B3OC(C)(C)C(C)(C)O3)[CH2:14]2)=[O:12])[CH2:3][CH2:2]1.Br[C:28]1[CH:33]=[CH:32][C:31]([F:34])=[CH:30][C:29]=1[C:35]([F:38])([F:37])[F:36].C(=O)([O-])[O-].[Na+].[Na+]>O.COCCOC>[O:1]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[N:4]([C:11]([N:13]2[CH2:17][CH:16]=[C:15]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[CH:30][C:29]=3[C:35]([F:36])([F:38])[F:37])[CH2:14]2)=[O:12])[CH2:3][CH2:2]1

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 5209832-Bromo-5-fluorobenzotrifluorideHCID 67187569(2,3-Dihydrobenzo[1,4]oxazin-4-yl)[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,5-dihydropyrrol-1-yl]methanone

생성물 1

HCID 67187504(2,3-Dihydrobenzo[1,4]oxazin-4-yl)[3-(4-fluoro-2-(trifluoromethyl)phenyl)-2,5-dihydropyrrol-1-yl]methanone수율 70.4%

시약·촉매·용매 2

HCID 962Water용매HCID 80711,2-Dimethoxyethane용매

실험 절차

0.4 g of (2,3-dihydrobenzo[1,4]oxazin-4-yl)[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,5-dihydropyrrol-1-yl]methanone, 0.4 g of 1-bromo-4-fluoro-2-(trifluoromethyl)benzene, 1.4 ml of a 2N solution of sodium carbonate in water and 15 ml of ethylene glycol dimethyl ether are placed in a 100 ml three-necked flask equipped with a magnetic stirrer and placed under an inert atmosphere. The reaction mixture is degassed with nitrogen for 30 minutes and then the reaction mixture is heated at reflux for 14 h. After filtering and concentrating to dryness, the crude reaction product obtained is chromatographed on silica gel, elution being carried out with a gradient of ethyl acetate in dichloromethane varying from 0% to 10%. 0.31 g of (2,3-dihydrobenzo[1,4]oxazin-4-yl)[3-(4-fluoro-2-(trifluoromethyl)phenyl)-2,5-dihydropyrrol-1-yl]methanone is obtained.

후처리

  1. customequipped with a magnetic stirrer
  2. customThe reaction mixture is degassed with nitrogen for 30 minutes
  3. temperaturethe reaction mixture is heated
  4. temperatureat reflux for 14 h
  5. filtrationAfter filtering
  6. concentrationconcentrating to dryness
  7. customthe crude reaction product
  8. customobtained
  9. customis chromatographed on silica gel, elution

출처 및 근거

ORD 기록
ord-21d0623101a14257861d5146c451eddd
출처 데이터셋
uspto-grants-2011_05
특허 번호
US07947834B2

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