Diisopropylethylamine → 2-(N-tert-butyl-N-methylamino)-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-carbonitrile

HRID 17411

반응식

HRID 17411 반응식
Cl[C:2]1[O:3][C:4]2[C:5](=[C:7]([C:19]#[N:20])[C:8]([CH3:18])=[C:9]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:10]=2[F:11])[N:6]=1.C(N(C(C)C)CC)(C)C.[CH3:30][NH:31][C:32]([CH3:35])([CH3:34])[CH3:33]>ClCCl>[C:32]([N:31]([C:2]1[O:3][C:4]2[C:5](=[C:7]([C:19]#[N:20])[C:8]([CH3:18])=[C:9]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[C:10]=2[F:11])[N:6]=1)[CH3:30])([CH3:35])([CH3:34])[CH3:33]

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 84552N-Methyl-tert-butylamine2회HCID 510414292-Chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-carbonitrile

생성물 1

HCID 685839942-(N-tert-butyl-N-methylamino)-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-carbonitrile수율 93%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

2-Chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-cabonitrile (I-130) (0.20 g, 0.70 mmol) was dissolved in dichloromethane (10 ml), and diisopropylethylamine (0.15 ml, 0.88 mmol) and N-methyl-tert-butylamine (0.10 ml, 0.84 mmol) were added. After heating under reflux for 3 hours, N-methyl-tert-butylamine (50.0 μl, 0.42 mmol) was added, followed by heating under reflux for 2 hours. This was diluted with dichloromethane, washed with water, and dried over anhydrous sodium sulfate. The solvent was evaporated away under reduced pressure, and the resulting residue was purified by silica gel column chromatography (dichloromethane) to obtain a pale yellow solid (0.22 g, 0.65 mmol, 93%).

후처리

  1. temperatureAfter heating
  2. temperatureunder reflux for 3 hours
  3. temperatureby heating
  4. temperatureunder reflux for 2 hours
  5. washwashed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. customThe solvent was evaporated away under reduced pressure
  8. customthe resulting residue was purified by silica gel column chromatography (dichloromethane)

출처 및 근거

ORD 기록
ord-0b6aaea06b77418ebe65367fb21e66c5
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07737166B2

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