2-Hydroxymethyl-5-methyl-2,3,6,7-tetrahydrofuro[2,3-f]quinoline-7-one → 2,3,6,7,8,9-Hexahydro-2-hydroxymethyl-5-methylfuro[2,3-f]quinoline-7-one

HRID 1900717

반응식

HRID 1900717 반응식
[OH:1][CH2:2][CH:3]1[O:17][C:6]2=[C:7]3[C:12](=[C:13]([CH3:15])[CH:14]=[C:5]2[CH2:4]1)[NH:11][C:10](=[O:16])[CH:9]=[CH:8]3.[H][H]>[Pd].C(O)(=O)C>[OH:1][CH2:2][CH:3]1[O:17][C:6]2=[C:7]3[C:12](=[C:13]([CH3:15])[CH:14]=[C:5]2[CH2:4]1)[NH:11][C:10](=[O:16])[CH2:9][CH2:8]3

참가 물질

5

반응물 2

HCID 233696792-Hydroxymethyl-5-methyl-2,3,6,7-tetrahydrofuro[2,3-f]quinoline-7-oneHCID 178418361HCID 178418361, 화합물

생성물 1

HCID 233697232,3,6,7,8,9-Hexahydro-2-hydroxymethyl-5-methylfuro[2,3-f]quinoline-7-one수율 72.8%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 176Acetic Acid용매

실험 절차

2-Hydroxymethyl-5-methyl-2,3,6,7-tetrahydrofuro[2,3-f]quinoline-7-one (538 mg) was added to acetic acid (AcOH) (11 ml). To the obtained mixture, 10% palladium-on-carbon (323 mg) was added, and the solution was hydrogenated in the atmosphere of hydrogen at 50° C. under atmospheric pressure. After completion of the reaction, the catalyst was filtered off. The solvent was evaporated, and the residue was dissolved in chloroform. The solution was washed with aqueous sodium bicarbonate solution and water in this order, and dried. Subsequently, the solvent was evaporated to obtain 478 mg of a crude. The obtained crude was purified by silica gel column chromatography (eluent:=chloroform:methanol=100:1), to obtain 395 mg of the target compound (72.8%). This substance was recrystallized from a solvent mixture of chloroform-n-hexane. As a result, colorless powdery crystals having a melting point of 172°-173° C. were obtained.

후처리

  1. customAfter completion of the reaction
  2. filtrationthe catalyst was filtered off
  3. customThe solvent was evaporated
  4. dissolutionthe residue was dissolved in chloroform
  5. washThe solution was washed with aqueous sodium bicarbonate solution and water in this order
  6. customdried
  7. customSubsequently, the solvent was evaporated
  8. customto obtain 478 mg of a crude
  9. customThe obtained crude
  10. customwas purified by silica gel column chromatography (eluent:=chloroform:methanol=100:1)

출처 및 근거

ORD 기록
ord-0f3eefda9de44bdca1059d0faf19ae01
출처 데이터셋
uspto-grants-1996_11
특허 번호
US05576324

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