Ammonia → 5-Benzylidenehydantoin

HRID 67155

Reaktionsgleichung

Reaktionsgleichung von HRID 67155
[NH:1]1[CH2:7][C:5](=[O:6])[NH:4][C:2]1=[O:3].[CH:8](=O)[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.C(O)(=O)CC.N>>[CH:8](=[C:7]1[NH:1][C:2](=[O:3])[NH:4][C:5]1=[O:6])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

Komponenten

5

Edukt 4

HCID 222AmmoniaHCID 240BenzaldehydeHCID 1032Propionic AcidHCID 10006Hydantoin

Produkt 1

HCID 978575-BenzylidenehydantoinAusbeute 94,6 %

Versuchsvorschrift

To a mixture of 100 grams (1.0 mole) of hydantoin, 106 grams (1.0 mole) of benzaldehyde, and 370 grams (5.0 moles) of propionic acid, there were added 17 grams (1.0 mole) of ammonia. The mixture was subsequently held for 3 hours at reflux temperature. After the cooling off, there were obtained 178 grams of 5-benzylidene hydantoin, corresponding to 95% of theory based on hydantoin.

Aufarbeitung

  1. temperatureat reflux temperature

Quellen und Nachweise

ORD-Eintrag
ord-b6bb45a4b7e84b40ba94557164a9d2d0
Quelldatensatz
uspto-grants-1982_08
Patentnummer
US04345072

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