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Communication | Regular issue | Vol 6, No. 11, 1977, pp.1827-1833
Published online, 1st January, 1970
DOI: 10.3987/R-1977-11-1827
4-Oxo-2-pyrrolines Carrying No Substituents on the Ring Carbon: Substituent Effects in the Tautomerism between 4-Oxo-2-pyrrolines and 3-Hydroxypyrroles

Takefumi Momose,* Tetsuaki Tanaka, and Takashi Yokota

*Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama, Toyama 930-0194, Japan

Abstract

Syntheses of 4-oxo-2-pyrrolines having no substituents on the ring carbon were accomplished, and the substituent effects governing the tautomerism between hydroxypyrroles and pyrrolinones were investigated in a series of 3-hydroxypyrroles synthesized.