DE189076A - - Google Patents

Info

Publication number
DE189076A
DE189076A DE189076A DE 189076 A DE189076 A DE 189076A DE 189076 A DE189076 A DE 189076A
Authority
DE
Germany
Prior art keywords
guanidine
acid ester
dioxypyrimidines
dialkylmalonylguanidines
nitrites
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
Other languages
German (de)

Links

Description

BERLlM. GEDRUCKT IN DER REICHSt)RUCKEREI,BERLlM. PRINTED IN THE REICHST) PRINTING,

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Darstellung von C-C-Dialkylbarbitursäuren, dadurch gekennzeichnet, daß man die durch Kondensation von Dialkylmalonsäureester mit Guanidin oder von Monoalkylmalonsäureester mit Guanidin und folgende Alkylierung erhältliehen Dialkylmalonylguanidine (5-Dialkyl-2-imino-4 · 6-dioxypyrimidine) mit Nitriten in saurer Lösung behandelt.Process for the preparation of C -C dialkylbarbituric acids, characterized in that the by condensation of dialkylmalonic acid ester with guanidine or obtained from monoalkylmalonic acid ester with guanidine and subsequent alkylation Dialkylmalonylguanidines (5-dialkyl-2-imino-4 · 6-dioxypyrimidines) with nitrites treated in acidic solution.

Family

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