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Dimethylformamide → ethyl (6E)-6-[[4-[(5-methyl-2-thiophen-2-yl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoate

HRID 2299872
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반응식

HRID 2299872 반응식
Cl[CH2:2][C:3]1[N:4]=[C:5]([C:9]2[S:10][CH:11]=[CH:12][CH:13]=2)[O:6][C:7]=1[CH3:8].[OH:14][C:15]1[CH:39]=[CH:38][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)\[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C.CCCCCC.O>[CH3:8][C:7]1[O:6][C:5]([C:9]2[S:10][CH:11]=[CH:12][CH:13]=2)=[N:4][C:3]=1[CH2:2][O:14][C:15]1[CH:16]=[CH:17][C:18]([CH2:19][O:20]/[N:21]=[C:22](/[C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)\[CH2:23][CH2:24][CH2:25][CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:38][CH:39]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 50764914-(Chloromethyl)-5-methyl-2-(thiophen-2-yl)-1,3-oxazoleHCID 11089565ethyl (6E)-6-[(4-hydroxyphenyl)methoxyimino]-6-phenylhexanoate

생성물 1

HCID 11827573ethyl (6E)-6-[[4-[(5-methyl-2-thiophen-2-yl-1,3-oxazol-4-yl)methoxy]phenyl]methoxyimino]-6-phenylhexanoate수율 95.2%

시약·촉매·용매 2

HCID 962Water용매HCID 21226206Ethyl acetate hexane용매

실험 절차

A mixture of 4-chloromethyl-5-methyl-2-(2-thienyl)oxazole (397 g), ethyl E-6-(4-hydroxybenzyloxyimino)-6-phenylhexanoate (600 mg), potassium carbonate (467 mg) and N,N-dimethylformamide (7 ml) was stirred at room temperature for 18 hours. Water was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain ethyl E-6-[4-[5-methyl-2-(2-thienyl)-4-oxazolylmethoxy]benzyloxyimino]-6-phenylhexanoate (856 mg, yield 95%) as a colorless oil from an ethyl acetate-hexane (1:4, v/v)-eluted fraction.

후처리

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-621eeb552f9b44d398ed4d5aa7160e2b
출처 데이터셋
uspto-grants-2002_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06495581B1

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