Vinyl Acetate → 5,6-Dihydroxy-2-vinyl-2-azabicyclo[2.2.1]heptan-3-one

HRID 219518

反応式

HRID 219518 の反応式
[OH:1][CH:2]1[CH:7]([OH:8])[CH:6]2[CH2:9][CH:3]1[C:4](=[O:10])[NH:5]2.[CH:11]12CC(C=[CH:16]1)C(=O)N2.S(=O)(O)[O-].[Na+].C(OC=C)(=O)C>N1C=CC=CC=1.O.[Os](=O)(=O)(=O)=O.[Na+].[Na+].Cl[Pd+2](Cl)(Cl)Cl>[OH:1][CH:2]1[CH:7]([OH:8])[CH:6]2[CH2:9][CH:3]1[C:4](=[O:10])[N:5]2[CH:11]=[CH2:16]

参加物

9

実験手順

The intermediate 5,6-dihydroxy-2-azabicyclo[2.2.1]heptan-3-one is made by stirring a solution of 2-azabicyclo[2.2.1]hept-5-en-3-one (1.00 g, 9.16 mmole) and osmium tetroxide (2.33 g, 9.16 mmole) in pyridine (35 ml) at room temperature for 2 hours. The osmate ester is cleaved by mixing the reaction solution with a solution of sodium bisulfite (4.2 g) in water (70 ml) and pyridine (50 ml). The product is extracted from the reaction solution with 3-150 ml portions of methylene chloride. Evaporation of the dried methylene chloride gives the crude dihydroxy bicyclic amide (intermediate). The intermediate is mixed with sodium tetrachloropalladate (30 mg, 0.10 mmole) and vinyl acetate (6 ml, 66 mmole). The mixture is then refluxed for 5 days. The crude product (Compound 7) is isolated by filtration to remove the catalyst and evaporation of the excess vinyl acetate.

後処理

  1. extractionThe product is extracted from the reaction solution with 3-150 ml portions of methylene chloride
  2. customEvaporation of the dried methylene chloride
  3. customgives the crude dihydroxy bicyclic amide (intermediate)
  4. temperatureThe mixture is then refluxed for 5 days

出典と根拠

ORDレコード
ord-657c720571d64ad8add6a04c6d205486
出典データセット
uspto-grants-2012_06
特許番号
US08202833B2

関連ノート

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