AT224113B - Process for the preparation of the new 2- [1- (5-nitrofurfurylidene-amino) -2,4-dioxo-imidazolidyl- (3)] - ethylcarbamic acid ethyl ester - Google Patents

Process for the preparation of the new 2- [1- (5-nitrofurfurylidene-amino) -2,4-dioxo-imidazolidyl- (3)] - ethylcarbamic acid ethyl ester

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Publication number
AT224113B
AT224113B AT938261A AT938261A AT224113B AT 224113 B AT224113 B AT 224113B AT 938261 A AT938261 A AT 938261A AT 938261 A AT938261 A AT 938261A AT 224113 B AT224113 B AT 224113B
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AT
Austria
Prior art keywords
imidazolidyl
amino
dioxo
preparation
new
Prior art date
Application number
AT938261A
Other languages
German (de)
Original Assignee
Norwich Pharma Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Norwich Pharma Co filed Critical Norwich Pharma Co
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Publication of AT224113B publication Critical patent/AT224113B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung des neuen   2-[1- (5-Nitrofurfuryliden-amino) -     - 2, 4-dioxo-imidazolidyl- (3) j-äthylcarbaminsäure-äthylesters    
Die Erfindung betrifft ein Verfahren zur Herstellung des neuen   2-[l- (fi-Nitrofurfuryliden-amino) -     - 2, 4-dloxo-imidazolidyl- (3)]-äthylcarbaminsäure-äthylesters   der Formel : 
 EMI1.1 
 
 EMI1.2 
 

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 Reaktionsprodukt wird abfiltriert, mit Wasser, Alkohol sowie Äther gewaschen und bei 1100C getrocknet.. 



  Auf diese Weise erhält man 59 g (=   67tu0   d. Th.) des rohen   2-[1- (5-Nitrofurfuryliden-amino) -2, 4-dioxo-   -imidazolidyl-(3)]-äthylcarbaminsäure-äthylesters. Nach zwei Umkristallisationen aus 100 cm3 Nitromethan unter Zugabe von Tierkohle schmilzt die Verbindung (46 g) bei   176-177 C.  



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  Process for the preparation of the new 2- [1- (5-nitrofurfurylidene-amino) - - 2, 4-dioxo-imidazolidyl- (3) j-ethylcarbamic acid ethyl ester
The invention relates to a process for the preparation of the new 2- [l- (fi-nitrofurfurylidene-amino) - - 2, 4-dloxo-imidazolidyl- (3)] - ethylcarbamic acid ethyl ester of the formula:
 EMI1.1
 
 EMI1.2
 

 <Desc / Clms Page number 2>

 The reaction product is filtered off, washed with water, alcohol and ether and dried at 1100C ..



  In this way, 59 g (= 67tu0 of theory) of the crude ethyl 2- [1- (5-nitrofurfurylidene-amino) -2, 4-dioxo- imidazolidyl- (3)] ethylcarbamic acid are obtained. After two recrystallizations from 100 cm3 nitromethane with the addition of animal charcoal, the compound (46 g) melts at 176-177 C.

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung des neuen 2-[1-(5-Nitrofurfurylide-amino)-2,4-dioxo-imidazolidyl-(3)]- -äthylcarbaminsäure-äthylesters der Formel : EMI2.1 dadurch gekennzeichnet, dass man 5-Nitrofurfurol bzw. dessen reaktionsfähige Derivate mit 2-[1-Amino- -2,4-dioxo-imidazolidyl-(3)]-äthylcarbaminsäure-äthylester oder dessen reaktionsfähigen Derivaten umsetzt. PATENT CLAIM: Process for the preparation of the new 2- [1- (5-nitrofurfurylid-amino) -2,4-dioxo-imidazolidyl- (3)] - -äthylcarbamic acid ethyl ester of the formula: EMI2.1 characterized in that 5-nitrofurfurol or its reactive derivatives are reacted with ethyl 2- [1-amino- -2,4-dioxo-imidazolidyl- (3)] -ethylcarbamic acid or its reactive derivatives.
AT938261A 1960-12-27 1961-12-12 Process for the preparation of the new 2- [1- (5-nitrofurfurylidene-amino) -2,4-dioxo-imidazolidyl- (3)] - ethylcarbamic acid ethyl ester AT224113B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US224113XA 1960-12-27 1960-12-27

Publications (1)

Publication Number Publication Date
AT224113B true AT224113B (en) 1962-11-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
AT938261A AT224113B (en) 1960-12-27 1961-12-12 Process for the preparation of the new 2- [1- (5-nitrofurfurylidene-amino) -2,4-dioxo-imidazolidyl- (3)] - ethylcarbamic acid ethyl ester

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AT (1) AT224113B (en)

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