Triethylamine → 3-(4-Bromo-1-naphthalenyl)-5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)isoxazole

HRID 1958873노트

반응식

HRID 1958873 반응식
ClN1C(=O)CCC1=O.[Br:9][C:10]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([CH:20]=[N:21][OH:22])=[CH:12][CH:11]=1.[Cl:23][C:24]1[CH:29]=[C:28]([C:30]([C:32]([F:35])([F:34])[F:33])=[CH2:31])[CH:27]=[C:26]([Cl:36])[CH:25]=1.BrC(C(F)(F)F)=C.FF.C(N(CC)CC)C>CN(C)C=O.O>[Br:9][C:10]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([C:20]2[CH2:31][C:30]([C:28]3[CH:27]=[C:26]([Cl:36])[CH:25]=[C:24]([Cl:23])[CH:29]=3)([C:32]([F:33])([F:35])[F:34])[O:22][N:21]=2)=[CH:12][CH:11]=1

참가 물질

9

반응물 6

HCID 8471TriethylamineHCID 24524FluorineHCID 31398ChlorosuccinimideHCID 2726961-Propene, 2-bromo-3,3,3-trifluoro-HCID 231598231,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzeneHCID 74016047(E)-4-bromo-1-naphthaldehyde oxime2회

생성물 1

HCID 866452773-(4-Bromo-1-naphthalenyl)-5-(3,5-dichlorophenyl)-4,5-dihydro-5-(trifluoromethyl)isoxazole

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매2회

실험 절차

N-Chlorosuccinimide (1.70 g, 12.7 mmol) was added to a solution of 4-bromo-1-naphthalenecarboxaldehyde oxime (i.e. the product of Step A, 2.33 g, 9.3 mmol) in N,N-dimethylformamide (6.0 mL). The reaction mixture was stirred for 1 h at room temperature, and then a solution of 1,3-dichloro-5-[1-(trifluoromethyl)ethenyl]benzene (2.70 g, 11.2 mmol, prepared from commercially available 2-bromo-3,3,3-trifluoropropene by the method described in J. Fluorine Chem. 1999, 95, 167-170) and triethylamine (4.5 mL, 32.0 mmol) in N,N-dimethylformamide (9.0 mL) was added. After stirring for an additional 2 h at room temperature, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic extract was washed with brine, dried over sodium sulfate, and concentrated under reduced pressure. The residue was purified by chromatography on silica gel eluted with ethyl acetate/hexanes to afford the title compound as a white solid (2.9 g). 1H NMR (CDCl3): δ 8.87 (m, 1H), 8.32 (m, 1H), 7.77 (d, 1H), 7.66 (m, 2H), 7.55 (s, 1H), 7.46 (dd, 1H), 7.32 (d, 1H), 4.24 (d, 1H), 3.88 (d, 3H).

후처리

  1. stirringAfter stirring for an additional 2 h at room temperature
  2. extractionextracted with ethyl acetate
  3. extractionThe organic extract
  4. washwas washed with brine
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by chromatography on silica gel
  8. washeluted with ethyl acetate/hexanes

출처 및 근거

ORD 기록
ord-08bcd5b13ede49c6a200818fbba1d3f1
출처 데이터셋
uspto-grants-2013_04
특허 번호
US08410153B2

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