Sodium amide → 1,5-Dimethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

HRID 1390377

Reaktionsgleichung

Reaktionsgleichung von HRID 1390377
[NH2-].[Na+].[CH3:3][N:4]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[NH:8][C:7](=[O:15])[CH2:6][C:5]1=[O:16].[CH3:17]OS([O-])(=O)=O>C1(C)C(C)=CC=CC=1>[CH3:3][N:4]1[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=2[N:8]([CH3:17])[C:7](=[O:15])[CH2:6][C:5]1=[O:16]

Komponenten

5

Edukt 3

HCID 24533Sodium amideHCID 4694097Methyl sulfate(1-)HCID 227492411-methyl 1,2,4,5-tetrahydro 2,4-diketo 3H-1,5-benzodiazepine

Produkt 1

HCID 5360091,5-Dimethyl-1H-1,5-benzodiazepine-2,4(3H,5H)-dione

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7237O-XyleneLösungsmittel

Versuchsvorschrift

2 g of sodium amide are added to a suspension of 9.5 g of 1-methyl 1,2,4,5-tetrahydro 2,4-diketo 3H-1,5-benzodiazepine, obtained in the example XIV, in 30 c.c. of xylene, and the whole is heated for about thirty minutes, while agitating, treated with 20 c.c. of methyl-sulfate and as soon as the exothermic reaction has ceased, this is heated and boiled for three hours. The solvent is evaporated under reduced presure, the residue is taken up in 200 c.c. of a 10% solution of caustic soda, and after agitation, suction filtered, and purified upon crystallisation in 90% ethanol. Yield 4.5 g; melting point: 240°-242° C.

Aufarbeitung

  1. customobtained in the example XIV, in 30 c.c
  2. additiontreated with 20 c.c
  3. temperaturethis is heated
  4. customThe solvent is evaporated under reduced presure
  5. filtrationof a 10% solution of caustic soda, and after agitation, suction filtered
  6. custompurified upon crystallisation in 90% ethanol

Quellen und Nachweise

ORD-Eintrag
ord-a428d5a73b114d11858602c68098d1fb
Quelldatensatz
uspto-grants-1979_02
Patentnummer
US04138572

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