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Dichloromethane methanol → Diethyl (S)-[1-(t-butyldiphenylsilyloxymethyl)-2-hydroxyethoxy]methylphosphonate

HRID 6257
노트
인쇄 미리보기

반응식

HRID 6257 반응식
C([O:8][CH2:9][C@@H:10]([CH2:21][O:22][Si:23]([C:36]([CH3:39])([CH3:38])[CH3:37])([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)[O:11][CH2:12][P:13](=[O:20])([O:17][CH2:18][CH3:19])[O:14][CH2:15][CH3:16])C1C=CC=CC=1.[H][H].C(Cl)Cl.CO>C(O)C.CO.Cl.[Pd]>[Si:23]([O:22][CH2:21][C@@H:10]([O:11][CH2:12][P:13](=[O:20])([O:14][CH2:15][CH3:16])[O:17][CH2:18][CH3:19])[CH2:9][OH:8])([C:36]([CH3:38])([CH3:39])[CH3:37])([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 3

HCID 21226129Dichloromethane methanolHCID 53667746diethyl (S)-[2-benzyloxy-1-(t-butyldiphenylsilyloxymethyl)ethoxy]methylphosphonateHCID 178418361HCID 178418361, 화합물

생성물 1

HCID 54250790Diethyl (S)-[1-(t-butyldiphenylsilyloxymethyl)-2-hydroxyethoxy]methylphosphonate수율 85.1%

시약·촉매·용매 3

HCID 23938Palladium
촉매
HCID 21893726Hydrochloride methanol촉매
HCID 702Ethanol용매

실험 절차

To a solution of diethyl (S)-[2-benzyloxy-1-(t-butyldiphenylsilyloxymethyl)ethoxy]methylphosphonate (1.90 g, 3.3 mmol) in ethanol (20 ml) containing a trace of methanol/HCl (10 drops), was added 10%Pd-C (1.2 g). The mixture was shaken under an atmosphere of hydrogen at ambient temperature and atmospheric pressure until hydrogen uptake was complete and t.l.c. (SiO2, CH2Cl2 -MeOH, 95:5) indicated no starting material remained. The reaction mixture was filtered, the filtrate evaporated and the residue obtained chromatographed on silica gel (dichloromethanemethanol, 95:5 as eluant) to give the title compound as a colourless oil (1.35 g, 84%).

후처리

  1. filtrationThe reaction mixture was filtered
  2. customthe filtrate evaporated
  3. customthe residue obtained
  4. customchromatographed on silica gel (dichloromethanemethanol, 95:5 as eluant)

출처 및 근거

ORD 기록
ord-f1025d795abd4352a2b488c82920f958
출처 데이터셋
uspto-grants-1993_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05247085

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