Triethylsilane → 3-(4,5-difluoro-2-hydroxyphenyl)-1-(diphenylmethyl)-1,3-dihydro-2H-indol-2-one

HRID 1407459

반응식

HRID 1407459 반응식
[F:1][C:2]1[C:7]([F:8])=[CH:6][C:5]([C:9]2(O)[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[N:11]([CH:18]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[C:10]2=[O:31])=[C:4]([OH:33])[CH:3]=1.C([SiH](CC)CC)C>FC(F)(F)C(O)=O>[F:1][C:2]1[C:7]([F:8])=[CH:6][C:5]([CH:9]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[N:11]([CH:18]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[C:10]2=[O:31])=[C:4]([OH:33])[CH:3]=1

참가 물질

4

반응물 2

HCID 12052TriethylsilaneHCID 673574293-(4,5-difluoro-2-hydroxyphenyl)-1-(diphenylmethyl)-3-hydroxy-1,3-dihydro-2H-indol-2-one

생성물 1

HCID 673572403-(4,5-difluoro-2-hydroxyphenyl)-1-(diphenylmethyl)-1,3-dihydro-2H-indol-2-one수율 56%

시약·촉매·용매 1

HCID 6422Trifluoroacetic acid용매

실험 절차

To a solution of 3-(4,5-difluoro-2-hydroxyphenyl)-1-(diphenylmethyl)-3-hydroxy-1,3-dihydro-2H-indol-2-one (11.72 g, 26.4 mmol) in trifluoroacetic acid (60 mL) under nitrogen was added triethylsilane (10.55 mL, 66.0 mmol), and the reaction mixture was stirred for 16 h. Following concentration in vacuo, the residue was purified by column chromatography (30% ethyl acetate in hexanes). Precipitation from diethyl ether/hexanes followed by filtration yielded 3-(4,5-difluoro-2-hydroxyphenyl)-1-(diphenylmethyl)-1,3-dihydro-2H-indol-2-one (6.29 g, 56%) as a colorless solid: 1H NMR (300 MHz, CDCl3) δ 9.27 (br s, 1H), 7.37-7.12 (m, 12H), 6.94 (s, 1H), 6.87 (dd, J=11.3, 7.1 Hz, 1H), 6.76 (dd, J=11.2, 8.9 Hz, 1H), 6.58-6.56 (m, 1H), 5.12 (s, 1H); MS (ES+) m/z 428.2 (M+1).

후처리

  1. concentrationconcentration in vacuo
  2. customthe residue was purified by column chromatography (30% ethyl acetate in hexanes)
  3. customPrecipitation from diethyl ether/hexanes
  4. filtrationfollowed by filtration

출처 및 근거

ORD 기록
ord-b872ae59c8204efc84fb12faf93bf956
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08916580B2

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