TY  - SER
AU  - Mokhtar, Hassan M.
TI  - Synthesis of Nitrogenous Compounds from Delta-Unsaturated 1,3-Dicarbonyl Esters .1. Substituted Pyrazoles, Isoxazoles and Oxyquinoxalines
KW  - Ethyl Oxalate
KW  - 4-Substituted-But-3-En-2-ones
KW  - Ethyl 6-Aryl-2,4-Dioxo
ER  -