Methylamine → HCID 68701570, 화합물

HRID 62006노트

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HRID 62006 반응식
[CH3:1][NH2:2].O=[C:4]([C:11]1[C:12]([C:17]([F:20])([F:19])[F:18])=[N:13][CH:14]=[CH:15][CH:16]=1)[CH2:5][C:6]([O:8][CH2:9][CH3:10])=[O:7].C(=O)([O-])[O-].[K+].[K+].[CH2:27]([O:34][C:35]1[CH:36]=[C:37]([C:52](=O)[CH2:53]Br)[CH:38]=[C:39]([N+:49]([O-:51])=[O:50])[C:40]=1[O:41][CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1>C(O)C.C(O)(=O)C.CN(C)C=O>[CH2:27]([O:34][C:35]1[CH:36]=[C:37]([C:52]2[N:2]([CH3:1])[C:4]([C:11]3[C:12]([C:17]([F:20])([F:19])[F:18])=[N:13][CH:14]=[CH:15][CH:16]=3)=[C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])[CH:53]=2)[CH:38]=[C:39]([N+:49]([O-:51])=[O:50])[C:40]=1[O:41][CH2:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

참가 물질

8

반응물 4

HCID 6329MethylamineHCID 11430Potassium CarbonateHCID 68702337HCID 68702337, 화합물HCID 714457901-[3,4-Bis(benzyloxy)-5-nitrophenyl]-2-bromoethan-1-one

생성물 1

HCID 68701570HCID 68701570, 화합물

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 702Ethanol용매HCID 6228Dimethylformamide용매

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온도
100 °C

실험 절차

To a stirred solution of methylamine (0.63 mL, 33% EtOH solution, 5 mmol) in a mixture of ethanol (25 mL) and acetic acid (0.5 mL) at room temperature was added ethyl 3-oxo-3-(2-(trifluoromethyl)pyridin-3-yl)propanoate (1.305 g, 5 mmol). The reaction mixture was heated at reflux for two hours whereupon the solvent was removed by evaporation under vacuum. To a solution of the crude product in dimethylformamide (25 mL) was added potassium carbonate (2.07 g, 15 mmol) in one portion followed by 1-(3,4-bis-benzyloxy-5-nitrophenyl)-2-bromo-ethanone (2.51 g, 5.50 mmol) and the mixture was then stirred at 100° C. Once no starting material was detectable, the reaction mixture was allowed to cool to room temperature and poured onto ice-cold 1 N aqueous hydrochloric acid (100 mL). The resulting precipitate was filtered off, washed with water and dried. The residue was chromatographed over silica gel. Homogeneous fractions were pooled and evaporated to give ethyl 5-(3,4-bis(benzyloxy)-5-nitrophenyl)-1-methyl-2-(2-(trifluoromethyl)pyridin-3-yl)-1H-pyrrole-3-carboxylate, 2.492 g (79%).

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux for two hours whereupon the solvent
  3. customwas removed by evaporation under vacuum
  4. temperatureto cool to room temperature
  5. additionpoured onto ice-cold 1 N aqueous hydrochloric acid (100 mL)
  6. filtrationThe resulting precipitate was filtered off
  7. washwashed with water
  8. customdried
  9. customThe residue was chromatographed over silica gel
  10. customevaporated

출처 및 근거

ORD 기록
ord-4bbcba62b55541e6a17091b2f8a8fad4
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09446012B2

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