3,4-Hexanedione → HCID 10159646, 화합물

HRID 1167374노트

반응식

HRID 1167374 반응식
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][C@@H:13]2[O:18][C:17]3[C:19]([NH2:24])=[C:20]([NH2:23])[CH:21]=[CH:22][C:16]=3[O:15][CH2:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[CH3:25][CH2:26][C:27](=O)[C:28](=O)[CH2:29][CH3:30]>O.C(O)C.C(=O)([O-])O.[Na+]>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][CH:13]2[O:18][C:17]3=[C:19]4[C:20](=[CH:21][CH:22]=[C:16]3[O:15][CH2:14]2)[N:23]=[C:28]([CH2:29][CH3:30])[C:27]([CH2:26][CH3:25])=[N:24]4)(=[O:10])=[O:9])=[CH:4][CH:3]=1

참가 물질

6

반응물 2

HCID 625393,4-HexanedioneHCID 11302542HCID 11302542, 화합물

생성물 1

HCID 10159646HCID 10159646, 화합물

시약·촉매·용매 3

HCID 702Ethanol용매HCID 962Water용매HCID 516892Sodium Bicarbonate용매

반응 조건

온도
60 °C

실험 절차

To a solution of [(2R)-7,8-diamino-2,3-dihydro-1,4-benzodioxin-2-yl]-methyl 4-methylbenzenesulfonate (2.226 g, 5.258 mmole) in water (50 mL) was added a solution of 3,4-hexanedione (0.750 g, 6.572 mmole) in ethyl alcohol (50 mL) and the reaction mixture was heated at 60° C. for 3 hours. The reaction mixture was allowed to cool to room temperature and was diluted with aqueous sodium hydrogen carbonate (250 mL) and extracted with ethyl acetate (2×100 mL). The combined organic extracts were washed with water (100 mL), aqueous sodium chloride (100 mL), dried (magnesium sulfate) and the solvent was removed in vacuo to give a crude solid. Purification by flash column chromatography (silica, ethyl acetate:hexanes 7:3) gave 1.796 g (80%) of the (R)-enantiomer of the title compound as a tan crystalline solid. Rf=0.85 (silica, ethyl acetate:hexanes 7:3); mp 132-135° C.

후처리

  1. temperatureto cool to room temperature
  2. extractionextracted with ethyl acetate (2×100 mL)
  3. washThe combined organic extracts were washed with water (100 mL), aqueous sodium chloride (100 mL)
  4. dry with materialdried (magnesium sulfate)
  5. customthe solvent was removed in vacuo
  6. customto give a crude solid
  7. customPurification by flash column chromatography (silica, ethyl acetate:hexanes 7:3)

출처 및 근거

ORD 기록
ord-b8fa5ff0a3594aeeaaead17eedcd41ce
출처 데이터셋
uspto-grants-2003_09
특허 번호
US06617327B2

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