Process for the preparation of 2-amino-5-nitrothiazole

Details Process for the preparation of 2-amino-5-nitrothiazole Process for the preparation of 2-amino-5-nitrothiazole

1980-07-30

1981-05-26

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D27738

Patent

active

042699851

ABSTRACT:
Disclosed is a novel process for the preparation of 2-amino-5-nitrothiazole which comprises the steps of (1) halogenating (chlorinating or brominating) a N,N-dialkyl-2-nitro-etheneamine having the formula O.sub.2 NCH.dbd.CHNR.sup.1 R.sup.2 to obtain a compound(s) having the structure ##STR1## (2) reacting (I) with thiourea to obtain a compound having the formula ##STR2## and (3) treating (II) with water.

REFERENCES:
patent: 3113947 (1963-12-01), Currie
patent: 3318904 (1967-05-01), Schmidt et al.
patent: 3830826 (1974-08-01), Strehlke et al.
Chem. Ber., vol. 98, 3847 (1967).

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