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HRID 67375Erstellt: 23. Oktober 2026

Sarcosine → 3,4-dihydro-4,6-dimethyl-2H-1,4-benzodiazepine-2,5(1H)-dione

https://huagongshe.com/de/reaction/67375

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktSarcosineHCID 1088—
Edukt5-methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dioneHCID 10487522—
LösungsmittelDimethyl SulfoxideHCID 679—
Produkt3,4-dihydro-4,6-dimethyl-2H-1,4-benzodiazepine-2,5(1H)-dioneHCID 21708975—

Reaktionsbedingungen

Temperatur110 °C

Reaktionsschritte

A mixture of 14.0 g (79 mmol) of 6-methylisatoic acid anhydride, 7.04 g (79 mmol) of sarcosine and 80 ml of dimethyl sulphoxide is stirred at 110° C. for 3 hours. The red coloured solution is evaporated in a high vacuum. The residue is treated with 80 ml of ethanol, the product crystallising out. There is obtained 3,4-dihydro-4,6-dimethyl-2H-1,4-benzodiazepine-2,5(1H)-dione of melting point 200°-202° C.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04346031
Quelldatensatzuspto-grants-1982_08
ORD IDord-3182e92f9292405e8150e0d2d9c7d3f1
Quellennotizuspto-grants-1982_08