Water → 2-(3-Hydroxypropyl)-2-phenyl-1,3-dioxolane

HRID 584395노트

반응식

HRID 584395 반응식
C[O:2][C:3]([CH2:5][CH2:6][C:7]1([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[O:11][CH2:10][CH2:9][O:8]1)=O.[H-].[Al+3].[Li+].[H-].[H-].[H-].O.C(OCC)(=O)C.CCCCCC>C(OCC)C>[OH:2][CH2:3][CH2:5][CH2:6][C:7]1([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[O:8][CH2:9][CH2:10][O:11]1

참가 물질

6

반응물 4

HCID 962WaterHCID 100371022-[2-(Methoxycarbonyl)ethyl]-2-phenyl-1,3-dioxolaneHCID 21226206Ethyl acetate hexaneHCID 21226445Aluminium lithium hydride

생성물 1

HCID 223445572-(3-Hydroxypropyl)-2-phenyl-1,3-dioxolane수율 87%

시약·촉매·용매 1

HCID 3283Diethyl Ether용매2회

실험 절차

A solution of 2-[2-(methoxycarbonyl)ethyl]-2-phenyl-1,3-dioxolane (5.00 g) in diethyl ether (15 ml) was added dropwise to a mixture of lithium aluminium hydride (949 mg) and diethyl ether (30 ml) at 0° C. After stirring for 30 minutes, water was added to the reaction mixture carefully and the precipitates were removed by filtration. The filtrate was extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain 2-(3-hydroxypropyl)-2-phenyl-1,3-dioxolane (3.81 g, yield 87%) as a colorless oil from an ethyl acetate-hexane (2:3, v/v)-eluted fraction.

후처리

  1. customthe precipitates were removed by filtration
  2. extractionThe filtrate was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-619da3d6a42a4cb78beec7dd117f318e
출처 데이터셋
uspto-grants-2005_08
특허 번호
US06924300B2

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