Potassium Carbonate → 7-(2-(5-(3-Chlorophenyl)-2-oxo-3-oxazolidinyl)propyl)-1,5-dioxabenzocycloheptan-3-one

HRID 374893

Reaktionsgleichung

Reaktionsgleichung von HRID 374893
[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]2[O:12][C:11](=[O:13])[N:10]([CH:14]([CH3:24])[CH2:15][C:16]3[CH:21]=[CH:20][C:19]([OH:22])=[C:18]([OH:23])[CH:17]=3)[CH2:9]2)[CH:5]=[CH:6][CH:7]=1.Br[CH2:26][C:27]([CH2:29]Br)=[O:28].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]2[O:12][C:11](=[O:13])[N:10]([CH:14]([CH3:24])[CH2:15][CH:16]3[CH2:21][CH2:20][C:19]4[O:22][CH2:26][C:27](=[O:28])[CH2:29][C:18]=4[O:23][CH2:17]3)[CH2:9]2)[CH:5]=[CH:6][CH:7]=1

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 699521,3-Dibromo-2-propanoneHCID 156692045-(3-Chlorophenyl)-3-(2-(3,4-dihydroxyphenyl)-1-methylethyl)-2-oxazolidinone

Produkt 1

HCID 189963407-(2-(5-(3-Chlorophenyl)-2-oxo-3-oxazolidinyl)propyl)-1,5-dioxabenzocycloheptan-3-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

One equivalent of 5-(3-chlorophenyl)-3-(2-(3,4-dihydroxyphenyl)-1-methylethyl)-2-oxazolidinone, prepared by the procedure of U.S. Pat. No. 5,061,727 Example 1, is treated with one equivalent of 1,3-dibromoacetone and excess potassium carbonate in acetonitrile. The mixture is stirred at room temperature for 18 hours, filtered and evaporated in vacuo to give 7-(2-(5-(3-chlorophenyl)-2-oxo-3-oxazolidinyl)propyl)-1,5-dioxabenzocycloheptan-3-one. One equivalent of this ketone is reduced, at room temperature for one hour, with excess sodium borohydride in methyl alcohol. The reaction mixture is poured into water, made acidic with 1N hydrochloric acid and extracted with methylene chloride. The organic extracts are dried and evaporated in vacuo to give 7-(2-(5-(3-chlorophenyl)-2-oxo-3-oxazolidinyl)propyl-1,5-dioxabenzocycloheptan-3-ol. Hydrolysis with 2.5N sodium hydroxide gives the title compound.

Aufarbeitung

  1. filtrationfiltered
  2. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-364c07cef4214d6f95543b5dfef1310b
Quelldatensatz
uspto-grants-1996_01
Patentnummer
US05482971

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