
TY  - JOUR
A1  - Donkor, A 
A1  - Prager, RH 
A1  - Thompson, MJ 
T1  - Heterocyclic Synthesis With Azides. I. The Reaction of Hydrazoic Acid With Ethoxymethylenemalonate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 10
SP  - 1571
EP  - 1576
KW  - 
UR  - https://doi.org/10.1071/CH9921571 
N2  - Reaction of diethyl ethoxymethylenemalonate with sodium azide in trifluoroacetic acid at 20º gives ethyl 5-ethoxyisoxazole-4-carboxylate (67%), diethyl cyanomalonate (21%) and diethyl ethoxyaminomethylenemalonate (5%). The last compound and its tautomer are converted into ethyl 1-ethoxy-3-oxo-2,3-dihydro-1H-pyrazole-4-carboxylate. The product structures have been confirmed by synthesis or degradation. 
ER  -

