Ethyl Acetate → (S)-tert-butyl 1-oxo-1-phenylpentan-2-ylcarbamate

HRID 1098865

반응식

HRID 1098865 반응식
CON(C)[C:4](=[O:17])[C@@H:5]([NH:9][C:10](=[O:16])[O:11][C:12]([CH3:15])([CH3:14])[CH3:13])[CH2:6][CH2:7][CH3:8].[C:19]1([Mg]Br)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.[Cl-].[NH4+].C(OCC)(=O)C>C1COCC1>[O:17]=[C:4]([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[C@@H:5]([NH:9][C:10](=[O:16])[O:11][C:12]([CH3:13])([CH3:14])[CH3:15])[CH2:6][CH2:7][CH3:8]

참가 물질

6

반응물 4

HCID 8857Ethyl AcetateHCID 25517Ammonium ChlorideHCID 9992774(S)-tert-butyl 1-(methoxy(methyl)amino)-1-oxopentan-2-ylcarbamateHCID 178418255HCID 178418255, 화합물

생성물 1

HCID 59339674(S)-tert-butyl 1-oxo-1-phenylpentan-2-ylcarbamate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

In a 50 mL round-bottomed flask was (S)-tert-butyl 1-(methoxy(methyl)amino)-1-oxopentan-2-ylcarbamate (91d, 250 mg, 0.96 mmol) dissolved in THF (9.6 ml). Phenylmagnesium bromide (2.88 ml, 2.88 mmol) 1.0 M in THF was added. The reaction was stirred at r.t. for 5 h. The reaction was poured into a mixture of saturated ammonium chloride and ethyl acetate. The mixture was shaken and the layers separated. The water layer was washed twice with ethyl acetate. The combined organic layers were washed once with a small portion of water and dried over sodium sulphate. The solvent was evaporated and the crude product was purified by flash chromatography.

후처리

  1. customIn a 50 mL round-bottomed flask was
  2. stirringThe mixture was shaken
  3. customthe layers separated
  4. washThe water layer was washed twice with ethyl acetate
  5. washThe combined organic layers were washed once with a small portion of water
  6. dry with materialdried over sodium sulphate
  7. customThe solvent was evaporated
  8. customthe crude product was purified by flash chromatography

출처 및 근거

ORD 기록
ord-a1194d2146154375b37cd516c2ef9303
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08143290B2

연결된 노트

불러오는 중…