Potassium Persulfate → HCID 19045180, 화합물

HRID 1781253노트

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HRID 1781253 반응식
COC1C=C(OC)C=CC=1C[N:6]1[C:9]([C:15]([O:17][CH2:18][CH3:19])=[O:16])([C:10]([O:12][CH2:13][CH3:14])=[O:11])[CH2:8][C:7]1=[O:20].S(OOS([O-])(=O)=O)([O-])(=O)=O.[K+].[K+].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C(#N)C.O>[O:20]=[C:7]1[CH2:8][C:9]([C:15]([O:17][CH2:18][CH3:19])=[O:16])([C:10]([O:12][CH2:13][CH3:14])=[O:11])[NH:6]1

참가 물질

6

반응물 3

HCID 24412Potassium PersulfateHCID 62657Potassium Phosphate, TribasicHCID 13505928HCID 13505928, 화합물

생성물 1

HCID 19045180HCID 19045180, 화합물

시약·촉매·용매 2

HCID 962Water용매HCID 6342Acetonitrile용매

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온도
65 °C

실험 절차

1(b) 17.4 g of diethyl 1-(2,4-dimethoxybenzyl)-2-oxoazetidine-4,4-dicarboxylate (prepared as described above) were dissolved in a mixture of 350 ml of acetonitrile and 350 ml of water. 11.2 g of potassium persulfate and 37.4 g of dibasic potassium phosphate were then added to the resulting solution, and the mixture was stirred at 65° C. for 1 hour. At the end of this time, insoluble materials were filtered off and the filtrate was freed from the solvent by evaporation under reduced pressure. The residue was extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium chloride, with an aqueous solution of sodium bicarbonate and with a saturated aqueous solution of sodium chloride, in that order. The solvent was then removed by distillation under reduced pressure, and the residue was purified by column chromatography through silica gel, eluted with a 1:2 by volume mixture of ethyl acetate and benzene, to give 5.72 g of diethyl 2-oxoazetidine-4,4-dicarboxylate.

후처리

  1. filtrationAt the end of this time, insoluble materials were filtered off
  2. customthe filtrate was freed from the solvent by evaporation under reduced pressure
  3. extractionThe residue was extracted with ethyl acetate
  4. washThe extract was washed with a saturated aqueous solution of sodium chloride, with an aqueous solution of sodium bicarbonate and with a saturated aqueous solution of sodium chloride, in that order
  5. customThe solvent was then removed by distillation under reduced pressure
  6. customthe residue was purified by column chromatography through silica gel
  7. washeluted with a 1:2 by volume mixture of ethyl acetate and benzene

출처 및 근거

ORD 기록
ord-11519b9cfafb4d618293384b8bd77b54
출처 데이터셋
uspto-grants-1997_05
특허 번호
US05633243

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