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Dioxopyrrolines. XXVII. Syntheses of 2-aryl-3-ethoxycarbonyl-.DELTA.2-pyrroline-4,5-diones.

Takehiro Sano, Yoshie Horiguchi, Jun Toda, K. IMAFUKU, Yoshisuke Tsuda

Chemical and Pharmaceutical Bulletin · 1984 · 40 citations · 0 references

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Abstract

2-Aryl-3-ethoxycarbonyl-Δ2-pyrroline-4, 5-diones (3) were easily prepared in good yields by condensation of the enamino-esters (2) with oxalyl chloride. The products were characterized by ultraviolet and infrared spectroscopy.