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Dimethylformamide → methyl [1-methyl-3-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethoxy]-1H-pyrazol-4-yl]acetate

HRID 1295303
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인쇄 미리보기

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HRID 1295303 반응식
[OH:1][C:2]1[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])=[CH:5][N:4]([CH3:12])[N:3]=1.Cl[CH2:14][C:15]1[O:19][N:18]=[C:17]([O:20][CH2:21][C:22]2[N:23]=[C:24]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[O:25][C:26]=2[CH3:27])[CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH3:12][N:4]1[CH:5]=[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])[C:2]([O:1][CH2:14][C:15]2[O:19][N:18]=[C:17]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])[CH:16]=2)=[N:3]1
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참가 물질

6

반응물 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 178612855-Chloromethyl-3-(5-methyl-2-phenyl-4-oxazolylmethoxy)isoxazoleHCID 178499559HCID 178499559, 화합물

생성물 1

HCID 86591676methyl [1-methyl-3-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethoxy]-1H-pyrazol-4-yl]acetate수율 91.4%

시약·촉매·용매 1

HCID 962Water용매

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온도
60 °C

실험 절차

A mixture of methyl (3-hydroxy-1-methyl-1H-pyrazol-4-yl)acetate (298 mg), 5-chloromethyl-3-(5-methyl-2-phenyl-4-oxazolylmethoxy)isoxazole (533 mg), potassium carbonate (484 mg) and N,N-dimethylformamide (10 ml) was stirred at 60° C. for 4 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and methyl [1-methyl-3-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethoxy]-1H-pyrazol-4-yl]acetate (701 mg, yield 91%) was obtained as a colorless oil from a fraction eluted with ethyl acetate-hexane (2:1, volume ratio).

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-aa8204a4c5774022ae86142fd83a4c9a
출처 데이터셋
uspto-grants-2007_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07241785B2

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