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1,3-Dichloro-2-(trifluoromethoxy)-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene → 5-(5-(3,5-dichloro-4-(trifluoromethoxy)phenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol

HRID 1750786
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HRID 1750786 반응식
[OH:1]/[N:2]=[C:3](\Cl)/[C:4]1[CH:15]=[CH:14][C:7]2[B:8]([OH:13])[O:9][C:10]([CH3:12])([CH3:11])[C:6]=2[CH:5]=1.[Cl:17][C:18]1[CH:23]=[C:22]([C:24]([C:26]([F:29])([F:28])[F:27])=[CH2:25])[CH:21]=[C:20]([Cl:30])[C:19]=1[O:31][C:32]([F:35])([F:34])[F:33]>CN(C=O)C>[Cl:17][C:18]1[CH:23]=[C:22]([C:24]2([C:26]([F:29])([F:27])[F:28])[O:1][N:2]=[C:3]([C:4]3[CH:15]=[CH:14][C:7]4[B:8]([OH:13])[O:9][C:10]([CH3:12])([CH3:11])[C:6]=4[CH:5]=3)[CH2:25]2)[CH:21]=[C:20]([Cl:30])[C:19]=1[O:31][C:32]([F:33])([F:35])[F:34]
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참가 물질

4

반응물 2

HCID 866850551,3-Dichloro-2-(trifluoromethoxy)-5-(3,3,3-trifluoroprop-1-en-2-yl)benzeneHCID 140608106(5Z)-N,1-dihydroxy-3,3-dimethyl-2,1-benzoxaborole-5-carboximidoyl chloride

생성물 1

HCID 715716745-(5-(3,5-dichloro-4-(trifluoromethoxy)phenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol수율 37.2%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of (Z)—N,1-dihydroxy-3,3-dimethyl-1,3-dihydrobenzo[c][1,2]oxaborole-5-carbimidoyl chloride (378 mg, 1.58 mmol) and 1,3-dichloro-2-(trifluoromethoxy)-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene (567 mg, 1.74 mmol) in DMF (10 mL) at rt was added TEA (176 mg, 1.74 mmol). The reaction mixture was stirred at rt for 18 h, poured into ice-water and extracted with EA (20 mL). The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by column chromatography to give the final desired title compound 5-(5-(3,5-dichloro-4-(trifluoromethoxy)phenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazol-3-yl)-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol (310 mg; 37% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ 9.22 (s, 1H), 7.91 (s, 2H), 7.76 (d, J=7.6 Hz, 2H), 7.70 (d, J=8.4 Hz, 1H), 4.46 (d, J=18.4 Hz, 1H), 4.37 (d, J=18.0 Hz, 1H), 1.48 (s,6H) ppm; HPLC purity: 97.1% at 220 nm and 99.0% at 254 nm; MS: m/z=528.4 (M+, ESI+).

후처리

  1. extractionextracted with EA (20 mL)
  2. washThe organic layer was washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography

출처 및 근거

ORD 기록
ord-551207e4aca64137ba668642df9ef176
출처 데이터셋
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09156860B2

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