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Ethyl Acetate → (1S,3S,4S)-3-[(benzyloxy)methyl]-4-{[tert-butyl(dimethyl)silyl]oxy}cyclopentanol

HRID 447648
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HRID 447648 반응식
[CH2:1]([O:8][CH2:9][C:10]1[C@@H:14]([O:15][Si:16]([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17])[CH2:13][C@@H:12]([OH:23])[CH:11]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Na+].[Na+].CCOC(C)=O>[Pd]>[CH2:1]([O:8][CH2:9][C@H:10]1[C@@H:14]([O:15][Si:16]([C:19]([CH3:21])([CH3:20])[CH3:22])([CH3:18])[CH3:17])[CH2:13][C@@H:12]([OH:23])[CH2:11]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
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참가 물질

5

반응물 3

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 66797876(1R,4S)-3-[(benzyloxy)methyl]-4-{[tert-butyl(dimethyl)silyl]-oxy}cyclopent-2-en-1-ol

생성물 1

HCID 66798092(1S,3S,4S)-3-[(benzyloxy)methyl]-4-{[tert-butyl(dimethyl)silyl]oxy}cyclopentanol수율 98.1%

시약·촉매·용매 1

HCID 23938Palladium촉매

실험 절차

A suspension of (1R,4S)-3-[(benzyloxy)methyl]-4-{[tert-butyl(dimethyl)silyl]-oxy}cyclopent-2-en-1-ol (1.47 g, 0.00439 mol), sodium carbonate (1.1 g, 0.010 mol) and 10% Pd/C (0.3 g, 0.0003 mol) in EtOAc (20 mL, 0.2 mol) was stirred under an atmosphere of Hydrogen overnight. The reaction was purged with nitrogen and filtered through celite with EtOAc. The filtrate was concentrated to obtain 1.45 g (98%) of the title compound as a 5:1 mixture of diastereomers (desired:undesired).

후처리

  1. customThe reaction was purged with nitrogen
  2. filtrationfiltered through celite with EtOAc
  3. concentrationThe filtrate was concentrated

출처 및 근거

ORD 기록
ord-ccfd37bbb39543459990973589a594f2
출처 데이터셋
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08481550B2

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