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Triacetoxyperiodinane → tert-Butyl 4-(4-phenyl-1,3-dioxobut-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate

HRID 8772
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HRID 8772 반응식
[C:1]1([CH2:7][CH:8]([OH:35])[CH2:9][C:10]([C:12]2([CH2:25][CH2:26][O:27][Si:28]([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29])[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]2)=[O:11])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl.CCOCC>[C:1]1([CH2:7][C:8](=[O:35])[CH2:9][C:10]([C:12]2([CH2:25][CH2:26][O:27][Si:28]([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29])[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:22])[CH3:23])=[O:19])[CH2:14][CH2:13]2)=[O:11])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 2

HCID 159087TriacetoxyperiodinaneHCID 21983965tert-Butyl 4-(4-phenyl-3-hydroxy-1-oxobut-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate

생성물 1

HCID 21983978tert-Butyl 4-(4-phenyl-1,3-dioxobut-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate수율 69.5%

시약·촉매·용매 2

HCID 3283Diethyl Ether용매
HCID 6344
Dichloromethane
용매

실험 절차

To a solution of tert-butyl 4-(4-phenyl-3-hydroxy-1-oxobut-1-yl)-4-(2-(tert-butyldimethylsilyloxy)eth-1-yl)piperidine-1-carboxylate (494 mg, 0.98 mmol) from Step F in methylene chloride (10 mL) at room temperature was added Dess-Martin reagent (621 mg, 1.5 mmol). After 3 h, the reaction was diluted with ether and quenched with 1N sodium hydroxide. After stirring for 30 min, the mixture was diluted with water and extracted twice with ether. The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated. The residue was purified by flash chromatography (10% ethyl acetate in hexanes) to afford the title product (343 mg).

후처리

  1. customquenched with 1N sodium hydroxide
  2. additionthe mixture was diluted with water
  3. extractionextracted twice with ether
  4. washThe combined organic layers were washed with brine
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by flash chromatography (10% ethyl acetate in hexanes)

출처 및 근거

ORD 기록
ord-0ad6df59fec94b07b829b6f097e8956d
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07091211B2

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