5-(Methoxycarbonyl)furan-2-carboxylic acid → 5-(Methoxycarbonyl)oxolane-2-carboxylic acid

HRID 1421824노트

반응식

HRID 1421824 반응식
[CH3:1][O:2][C:3]([C:5]1[O:6][C:7]([C:10]([OH:12])=[O:11])=[CH:8][CH:9]=1)=[O:4].[H][H]>C(OCC)(=O)C.[Rh]>[CH3:1][O:2][C:3]([CH:5]1[O:6][CH:7]([C:10]([OH:12])=[O:11])[CH2:8][CH2:9]1)=[O:4]

참가 물질

5

반응물 2

HCID 114351815-(Methoxycarbonyl)furan-2-carboxylic acidHCID 178418361HCID 178418361, 화합물

생성물 1

HCID 134258045-(Methoxycarbonyl)oxolane-2-carboxylic acid수율 100.2%

시약·촉매·용매 2

HCID 23948Rhodium촉매HCID 8857Ethyl Acetate용매

실험 절차

A mixture of furan-2,5-dicarboxylic acid monomethyl ester (1.95 g) and 5% rhodium on carbon (400 mg) in ethyl acetate (50 ml) was hydrogenated until hydrogen uptake ceased. The catalyst was filtered off and washed with ethyl acetate. The combined filtrates were evaporated to give (2.00 g) of the title compound: νmax (film) 3170, 1765 and 1720 cm-1 ; δH (CDCl3) 1.95-2.65 (4H, m), 3.85 (3H, s) and 4.55-4.8 (2H, m).

후처리

  1. filtrationThe catalyst was filtered off
  2. washwashed with ethyl acetate
  3. customThe combined filtrates were evaporated

출처 및 근거

ORD 기록
ord-591f113ceadb40adb7ada15fc63b2db3
출처 데이터셋
uspto-grants-2000_06
특허 번호
US06077952

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