Hexachloroethane → Diethyl-carbamic acid 1-(tert-butyl-dimethyl-silanyl)-4-chloro-1H-indol-5-yl ester

HRID 884604

반응식

HRID 884604 반응식
[C:1]([Si:5]([CH3:24])([CH3:23])[N:6]1[C:14]2[C:9](=[CH:10][C:11]([O:15][C:16](=[O:22])[N:17]([CH2:20][CH3:21])[CH2:18][CH3:19])=[CH:12][CH:13]=2)[CH:8]=[CH:7]1)([CH3:4])([CH3:3])[CH3:2].CN(CCN(C)C)C.C([Li])(CC)C.[Cl:38]C(Cl)(Cl)C(Cl)(Cl)Cl.[Cl-].[NH4+]>C1COCC1>[C:1]([Si:5]([CH3:24])([CH3:23])[N:6]1[C:14]2[C:9](=[C:10]([Cl:38])[C:11]([O:15][C:16](=[O:22])[N:17]([CH2:20][CH3:21])[CH2:18][CH3:19])=[CH:12][CH:13]=2)[CH:8]=[CH:7]1)([CH3:2])([CH3:3])[CH3:4]

참가 물질

7

반응 조건

온도
-78 °C

실험 절차

Diethyl-carbamic acid 1-(tert-butyl-dimethyl-silanyl)-1H-indol-5-yl ester (9.26 g, 26.7 mmol) is dissolved in THF (250 mL), flushed with nitrogen and cooled to −78° C. TMEDA (5 mL, 33.1 mmol) is then added followed by sec-butyllithium (24.8 mL, 34.7 mmol) and the reaction is stirred for 30 minutes. Hexachloroethane (12.73 g, 53.8 mmol) in 50 mL of THF is added over 10 minutes to the reaction. The reaction is allowed to warm to room temperature overnight (15 hours). The reaction is cooled using an ice bath and a saturated ammonium chloride (aq) solution is added (150 mL). The mixture is then extracted with ethyl acetate, dried (sodium sulfate) and concentrated to obtain the title compound as an oil that is used without further purification. MS (ESI) m/z 381.1 (M+1).

후처리

  1. customflushed with nitrogen
  2. temperatureto warm to room temperature overnight (15 hours)
  3. temperatureThe reaction is cooled
  4. extractionThe mixture is then extracted with ethyl acetate
  5. dry with materialdried (sodium sulfate)
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-0a28b8cef4554f3f865505d5d7aa35f0
출처 데이터셋
uspto-grants-2012_08
특허 번호
US08242125B2

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