Diethyl Ether → isopropyl 3-(5-amino-2-chloro-4-fluorophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate

HRID 52416

Reaktionsgleichung

Reaktionsgleichung von HRID 52416
[Cl:1][C:2]1[CH:7]=[C:6]([F:8])[C:5]([N+:9]([O-])=O)=[CH:4][C:3]=1[N:12]1[C:17](=[O:18])[N:16]([CH3:19])[C:15](=[O:20])[N:14]([CH2:21][C:22]([O:24][CH:25]([CH3:27])[CH3:26])=[O:23])[C:13]1=[O:28].[H][H].CCOCC>[Pt].C(OCC)(=O)C.C(Cl)Cl>[NH2:9][C:5]1[C:6]([F:8])=[CH:7][C:2]([Cl:1])=[C:3]([N:12]2[C:17](=[O:18])[N:16]([CH3:19])[C:15](=[O:20])[N:14]([CH2:21][C:22]([O:24][CH:25]([CH3:27])[CH3:26])=[O:23])[C:13]2=[O:28])[CH:4]=1

Komponenten

7

Edukt 3

HCID 3283Diethyl EtherHCID 57195947Isopropyl 3-(2-chloro-4-fluoro-5-nitrophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetateHCID 178418361HCID 178418361, Verbindung2×

Produkt 1

HCID 57313385isopropyl 3-(5-amino-2-chloro-4-fluorophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 23939PlatinumKatalysator2×HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

A mixture of isopropyl 3-(2-chloro-4-fluoro-5-nitrophenyl)tetrahydro-5-methyl-2,4,6-trioxo-s-triazine-1(2H)-acetate (34.8 g, 0.0835 mol) and 5% platinum on carbon (3.48 g) in ethyl acetate is hydrogenated until about 90 psi of hydrogen is taken up. The reaction mixture is then filtered and concentrated in vacuo to obtain a foam. Column chromatography of the foam using silica gel and 10% to 20% ether in methylene chloride solutions gives a yellow foam which contains two compounds. A mixture of the foam and 5% platinum on carbon (3.5 g) in ethyl acetate is hydrogenated until 5 psi of hydrogen is taken up. The reaction mixture is then filtered and concentrated in vacuo to give the title product as a yellow foam which is identified by NMR spectral analyses.

Aufarbeitung

  1. filtrationThe reaction mixture is then filtered
  2. concentrationconcentrated in vacuo
  3. customto obtain a foam
  4. customgives a yellow foam which
  5. filtrationThe reaction mixture is then filtered
  6. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-6f4efd5617bf4bf99dfdf8c6514761be
Quelldatensatz
uspto-grants-1997_04
Patentnummer
US05616706

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